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3 years ago

Does the graph represent a function? why or why not?

Mathematics

2 answers:

MakcuM [25]3 years ago

8 0

Answer:

The answer should be c

Step-by-step explanation:

whenever you are trying to determine whether a graph determines a function or not, just draw a vertically straight line through the graph's line. If you draw that line and it goes through the graph's line more than once, then the graph does not represent a function.

mr Goodwill [35]3 years ago

5 0

The answer is C however I always felt the “vertical line test” was for people who can’t do math and need images. A function is any equation that does not have same out come with different numbers I.E x^2 is not a function.

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Answer:

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Step-by-step explanation:

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3 years ago

I need some help with graphing again.

Rashid [163]

To find the x intercepts, we need to put the standard form equation into factored form.

Which two numbers multiply to -8 and add to -2?

$-4*2=-8$

$-4+2=-2$

So the factored form is

$(x-4)(x+2)$

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So now we have the x intercepts.

To find the vertex, we need to convert the standard form equation into vertex form.

The formula of vertex form is $y=a(x-h)^2+k$

Since the a value in the standard form equation is 1, the a value in vertex form is also one.

The h value can be found using the formula $h=\frac{-b}{2a}$

Which comes out to $\frac{2}{2}$ or 1.

To find the k value, we can just plug in what we got for h back into the equation.

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This also means the axis of symmetry is $x=-1$

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drek231 [11]

Answer:

D. translation, yes

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A is out because the shapes are congruent, and if the figure was reflected, it would have been closer to the y-axis. It is the same with B, if the figure was dilated, the second figure would have been similar but not congruent. C is out because the figure is still facing the same direction.

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