Which relation is a function?

Mathematics

1 answer:

sergejj [24]3 years ago

7 0

To determine which relation is a function, we can perform something called the vertical line test. We cover the graph in repeating vertical lines and if one vertical line connects with more than one point of the relation, the relation is not a function.

The relation in the bottom right corner is the only relation that passes the vertical line test.

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Lexie started her homework at 4:30 P.M.She finished at 5:05 P.M.How many seconds did it take her to finish her homework.

balandron [24]

It took her 18,300seconds to finish her homework

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4 years ago

In the function y = -5x2 + 5 , the graph will open down, be shifted up 5 units, and it will be wider than the parent function y

masya89 [10]

We are considering the function $y=f(x)=-5 x^{2} +5$

the graph of this function is the graph of the parent function $y=g(x)= x^{2}$ after applying the following steps.

1. multiply by -1:

$-x^{2}$ is $x^{2}$ reflected with respect to the x-axis.

2. multiply by 5:

$-5x^{2}$ is $-x^{2}$ shrinked towards the y axis.

for example, consider x=1/2

$-5x^{2}=-5( \frac{1}{2} )^{2}=-5* \frac{1}{4}= \frac{-5}{4}=-1.25$

$-x^{2}=- ( \frac{1}{2} )^{2}=- \frac{1}{4}=-0.25$

now this means that $-5x^{2}$ is "lower" than $-x^{2}$ , which means there is a shrinking of the graph.

3. add 5:

$-5 x^{2} +5$ is $-5 x^{2}$ shifted 5 units up.

4.

so the graph of the function a) opens down, b) is shifted 5 units up, c) is not wider than the parent function

Answer: False

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4 years ago

I NEED HELP WITH NUMBER FIVE- NUMBER FOURS ANSWER IS 108

Nookie1986 [14]

Answer:

s = 36b

Step-by-step explanation:

252/7 = 36, so maximum of 36 students can fit in one bus. The equation is s = 36b.

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Read 2 more answers

What is the answer??

vredina [299]

Answer:

The answer is what it is.

Step-by-step explanation:

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Need asap

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4/10 because 10-6 is 4 :)

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