Mathematics High School

Do the following set of points represent a function?Explain your answer (2,3),(3,8),(-1,4),(1,8)

Answers

Answer 1

Answer:

Yes.

Step-by-step explanation:

Yes.

To have a function, you cannot use the same value for an x-coordinate more than once. Here, each value of an x-coordinate is used only once, so it is a function.

Answer 2

Answer:

Yes.

Step-by-step explanation:

It is a many-to-one function. Both 3 and 1 map to 8.

2 maps to to 3 and -1 maps to 4 which is one-to-one.

There are no one to many mappings  so it is a function.

Related Questions

find the slope of the line through each pair of points
(3,-2),(-13,-8)

Answers

M = 3/8. Is the answer



Need it for now.........

Answers

Answer:

Step-by-step explanation:

A. g(x) = (- x)2 + 4
O B. g(x) = – x2 - 4
O c. g(x) = (- x)2 - 4
O D. g(x) = – x2 + 4

Answers

I am pretty sure the answer is d

Can someone please help me with math.

Answers

Answer:

A

Step-by-step explanation:

Hello There!

First thing we notice is that the y intercept is at (3,0) meaning that they have some sort of fee that has a charge of 3 dollars (represented by the 3)

Because the fee is 3 dollars we can immediately eliminate answers B and C

Now we want to find the charge for each bag of Potpourri (this can be represented by the slope)

Once again we want to choose two points on the line and plug it in into the slope formula

the points are optional but i have chosen the points (1,4.5) and (2,6)

*plug it into the slope formula*

[tex]slope=\frac{6-4.5}{2-1} \\6-4.5=1.5\\2-1=1\\slope =\frac{1.5}{1} or1.5[/tex]

so we can conclude that the charge per bag of potpourri is $1.50 leading us to answer choice A  

Eli makes a dozen cupcakes

he puts white frosting on 1/2 and chocolate frosting on the other 1/2

he puts sprinkles on 1/3 of the white frosted cupcakes and 1/2 of the chocolate frosted cupcakes

what fraction of the cupcakes have sprinkles?​

Answers

Answer:

5/12 I think?? Hope this helps!

A rectangle is 7 ft by 12 ft. Find the length of its diagonal. Round to the nearest tenth.

Answers

Answer:

13.9

Step-by-step explanation:

7² x 12² = 49 + 144 = 193

√193= 13.89

Divide the rectangle into two right triangles, like in the photo

you now have two congruent right triangles with 7ft and 12ft long legs

Use the pythagorean theorem to find the missing diagonal length (aka hypotenuse)

7^2 + 12^2 = c^2

49 + 144 = c^2

c^2 = 193

Square root both sides to get rid of the ^2

c = 13.9 ft

what is the 3rd root of -125

Answers

Answer:

-5

Step-by-step explanation:

-5


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Booker earned $1,200 over
the summer. He invested the money in
stocks. To his surprise, the stocks increased
in value to $1,335 in only 9 months. Find
the simple interest rate for the investment.

Answers

Answer:

15%

Step-by-step explanation:

1335-1200=135

9 months=9/12

135=1200 x r x 9/12

135=900r

divide each by 900

135/900       900r/900

0.15=r

0.15=15%

does anyone know this one

Answers

Answer:

x + 3y = 14

-4 + 3y = 14

+4 +4

3y = 18

y = 6

Please someone answer this!
Andrew has $90 in a savings account. The interest rate is 10% per year and is not compounded. How much interest will he earn in 2 years?

Answers

Answer: 108$

Step-by-step explanation:

write the equation of the line in slope intercept form given a table​

Answers

Answer:

y=3x+1

Step-by-step explanation:

Slope-intercept form is y=mx+b, where m is the slope and b is the y intercept

the formula for slope (m) is given as (y2-y1)/(x2-x1)

we can pick any 2 points to use to find the slope. For example, let's use (2,7) and (3,10)

label the points:

x1=2

y1=7

x2=3

y2=10

now substitute into the formula:

m=(y2-y1)/(x2-x1)

m=(10-7)/(3-2)

m=3/1

m=3

the slope of the line is 3

here's our equation so far:

y=3x+b

now we need to find b (y intercept)

because the line will pass through any of the points given on the table, we can use any one of the given points to solve for b

Let's take (2,7) though since it's the first point

substitute 2 as x and 7 as y in the equation

7=3(2)+b

7=6+b

1=b

so our equation is y=3x+1

Hope this helps! :)

In a right triangle, the measures of the two smaller angles are (3x+6) and (2x - 1)º. Find the measure of the smallest
angle in the triangle.
A. 170
B. 33°
C. 570
D. 90°

Answers

Answer:

B is the answer

Step-by-step explanation:

Since there is already a 90 degree angle in the right triangle, the other two angles must add up to 90.

[tex]3x + 6 + 2x - 1 = 90[/tex]

[tex]5x + 5 = 90[/tex]

[tex]5x = 85[/tex]

[tex]x = 17[/tex]

Plug 17 into both to find the smaller angle

[tex]3(17) + 6 = 57[/tex]

[tex]2(17) - 1 = 33[/tex]

[tex]33 < 57[/tex]

So 33 is the answer or B

Helpppppppppp I’m confused

Answers

Answer is 45 :) Have a nice day!

I think its 45 for a shorter way you can just put

5×5+15÷5×6 in the calculator because 5 to the second power is just the number times it self

Give the quotient in simplest form:

Answers

Answer:

x

Step-by-step explanation:

x/y / 1/y =

x / 1 x y / y =

x / 1 x 1 =

x

Hope that helps!

-Sabrina

Please please please help!!

Answers

Answer:

x = 138° because they are alternate interior angles. Alternate interior angles are congruent.

Step-by-step explanation:

Answer ASAP pls pls ASAP

Answers

Answer:

it 5

Step-by-step explanation:

15-10= 5 so r=5

Answer:

The value of r will be 5.

Step-by-step explanation:

15=r+10

15-10=r

5=r

If a triangle has a leg with a length of 6 units and a hypotenuse with a length of 10 units, find the length of the other leg.

Answers

Answer: 8 units

Step-by-step explanation:

This can be solved using the Pythagorean Theorem:

c² = a² + b²

c is the hypotenuse

a and b are the sides

Solving for the length:

10² = 6² + b²

100 = 36 + b²

b² = 100 - 36

b² = 64

b = √64

b = 8 units

The missing side is 8 units.

b) How many edges and vertices does a prism
with a 100-sided end face have?
edges
vertices

Answers

44 and help meeee tooo

0.54 + 17/100 = blank/100 + 17/00

Answers

Answer:

54 i think

Step-by-step explanation:

Answer:54

Step-by-step explanation:

The decimal 0.54 is equal to 54/100

A large box will hold 1,000 cubic inches. A small box measures 5 inches by 5 inches by 5 inches. How many smaller boxes will the large box hold?

Answers

Answer:

8

Step-by-step explanation:

Given data

Volume of large box= 1000cm^3

Dimension of small box

L=5cm

W=5cm

H=5cm

Volume of small box= 5^3

V=125cm^3

Hence the number of small box that can fill the large box is

=1000/125

=8

Please help me thank you if you do have a good day

Answers

Answer:

B. Getting faster

Step-by-step explanation:

20 POINTSS PLEASE HELP

Answers

Answer:

14 units

Step-by-step explanation:

it's 7 the length of a shape doesn't change when it's just reflected over the x or y axis

PLS HELP ME I DON'T HAVE A LOT OF TIME !!!

Answers

Answer:

d

Step-by-step explanation:

For the past 10 days, a city planner has counted the number of northbound cars that pass through a particular intersection. During that time, 200 or more cars were counted 9 out of 10 days.

What is the experimental probability that there will be 200 or more northbound cars passing through the intersection on the eleventh day? ​

Answers

Answer:there is no possiblity

Step-by-step explanation:

State the method that would be used to verify that the triangles are similar. Justify your answer. ​

Answers

Answer:

answer is 3

Step-by-step explanation:

add 5 minus 10

What is the number in a power that tells how many times the base is used as a factor

Answers

Answer:

"An expression that represents repeated multiplication of the same factor is called a power. The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor." -wwwmathplanet.com

Answer:

an expression tells hiw many times is base used

For an acute angle 8, the equation sin(O) = cos(6)
is true. What is the value of 0?

Answers

Answer:

heres your answer

Step-by-step explanation:

what is the mean and median to 36 18 12 10 9

Answers

Answer:

mean=17, median=12

Step-by-step explanation:

Mean=36+18+12+10+9=85÷5

=17

Median=9+10+12+18+36

=12

Mean is adding all the numbers (sum=85) divided by number of numbers (5). 85/5=17
Mean is: 17

Median is number in the middle.
9, 10, 12, 18, 36
12 is the number in the middle.
Median is 12

which graph represents the solution to 7x < 21 or 6x -9 > 21

Answers

Answer:

There is no solution, though the lines are confirmed as dashed with the shaded area being on the outer sides.

Step-by-step explanation:

above

f(x) =5x+8, g(x) = 2^2-1

Answers

Answer:

Step-by-step explanation:

f(g(x) ) =  5(g(x)) +8

=5(3)+8

=15+8

=23

g( f(x) ) = 3(f(x))

=3(5x+8)

=15x +24

:)

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