Question

PLEASE HELP!?!?!?

Answer 1

Divide the difference in y values by the difference in x values.

\(\dfrac{f(-4) - f(-5)}{-4 - (-5)} \)

Read f(-4) and f(-5) off the graph.

Answer 2

I'm not sure where they are

Answer 3

are they -4 and 0?

Answer 4

@mathstudent55

Answer 5

f(-4) would be the y value at x = -4

Answer 6

So yes, they would be -4 and 0

Answer 7

okay, what next?

Answer 8

Plug those in to the equation mathstudent gave you, for the f(-4) and f(-5)

Answer 9

so the answer is -4?

Answer 10

Which should be -4/1 which I don't see in your options

Answer 11

yeah, so what is the right answer out of my options?

Answer 12

Well we should be able to do it with just the two points, but I don't know why the answer isn't there

Answer 13

so I just guess and hope that the answer is right?

Answer 14

I wouldn't just guess

Answer 15

so then what do I do?

Answer 16

I guess I would give the closest answer (-5), but I wouldn't like it.....

Answer 17

okay. well thanks anyway :)

Answer 18

It looks like f(-5) = 1, and f(-4) = -4

\(\dfrac{-4 - 1}{-4 - (-5)} = \dfrac{-5}{1} = -5\)

Answer 19

oh, so the answer is -5?

Answer 20

Yes.

Answer 21

thank you :)

Answer 22

yw