Help can someone tell me in as much detail as possible how to do this?!!!
We are looking for the rate of change and make sure to simplify the answer.

Question

johnweldon1993 · Answer

Question?

anonymous · Answer

Here is the problem

johnweldon1993 · Answer

So first, notice that 'rate of change' is simply a way of saying 'slope'

So we want the slope of the line that passes through those 2 points right?

anonymous · Answer

Yes

johnweldon1993 · Answer

Great, so all we need to do is use the slope formula

$$\large m = \frac{y_2 - y_1}{x_2 - x_1}$$

We have 2 points...we can write them as

(0, 18) as (x1 and y1)
and
(16, 8) as (x2 and y2)

So all we need to do is plug them into that formula and simplify

anonymous · Answer

@johnweldon1993 ok

anonymous · Answer

Can you show me how that would look? Sorry:/

johnweldon1993 · Answer

No that's fine,

so the formula again

$$\large m = \frac{y_2 - y_1}{x_2 - x_1}$$

We know that 

x1 = 0
x2 = 16
y1 = 18
y2 = 8

SO we have

$$\large m = \frac{8 - 18}{16 - 0}$$
$$\large m = \frac{-10}{16}$$
$$\large m = \frac{-5}{8}$$

anonymous · Answer

Thank you thank you thank you!!!