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lara [203]
3 years ago
7

Please help functions

Mathematics
1 answer:
katrin2010 [14]3 years ago
4 0

A function is an equation or graph where each x value only has one y value. In the first image you can use the vertical line test. Take your pencil and lay it on the paper vertically. Move it across the graph. Basically if an x value has multiple y value it is not a function. The first image is not a function because all x values past zero have multiple y values for each x value. In the second image it is not A because in A the x value of 2 has a y value of 1 and 8. It is not B because the 5 has a y value of 3 and 7. It’s is not D because of the 5 again. It is C because all x values are unique.

Hope that helps

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Please answer all of this!!!! will give brainliest!!!
timurjin [86]

Answer:

I can't see it that well. sorry!

Step-by-step explanation:

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3 years ago
There are 6 minutes of commercials for every 24 minutes of television. How many minutes of commercials are there in 1 hour and 3
mafiozo [28]

Answer:

16\ minutes

Step-by-step explanation:

For every 24\ minutes of television time of commercials = 6\ minutes

% of commercials \=frac{6}{24}\times 100=25\%

Now when time of television=1\ hour\ 36\ minutes=60+36=96\ minutes

25 \%\ of 96=\frac{25}{100}\times 96=\frac{96}{4}=16\ minutes

6 0
3 years ago
Write an equation of a line in slope intercept form that is perpendicular to y = -4x -2 and passes through the point (-16, -11).
NISA [10]
Y = -4x - 2
P (-16, -11)
a = -4, b = 0, c = -2
m = -a/b
m = -(-4)/(-2)
m = 4/(-2)
m = -2

y-yo = m(x-xo)
y-(-11) = -2[x-(-16)]
y+11 = -2(x+16)
y+11 = -2x-32
2x+y+11+32 = 0
2x+y+43 = 0

A outra questão é semelhante.
4 0
3 years ago
Please help me asap<br> math
Stella [2.4K]

Answer:

I think 478.4   ._.

Step-by-step explanation:

First, find out how many gallons of gasoline she can buy with $18.50 by dividing 18.50 by 1.25 to get 14.8 gallons. Then, since he already has 6 gallons in his tank, add 6 to 14.8 = 20.8. Finally multiply this by the ratio of gallons to miles (23) to get 478.4

3 0
3 years ago
The length of a rectangle is 2 meters less than 2 times the width. The perimeter is 20 meters. Find the width.
kakasveta [241]
The equation you'd make would be (2x-2)+(2x-2)+x+x=20 because the length is 2 m less than the width (x). To simplify, it'd be 6x-4=20 because you combine like terms. You then move the -4 over to the 20 to make it 6x=24. The final answer is 4 meters.
4 0
3 years ago
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