What is the Average Rate of Change from x=-4 to x=1?

Question

anonymous · Answer

Here is the Parabola:

johnweldon1993 · Answer

So we can use the average rate of change formula

$$\large \frac{f(b) - f(a)}{b - a}$$

Meaning: 
a = -4
b = 1
f(b) = what value do we get when plugging in 'b' 
f(a) = what value do we get when plugging in 'a'

anonymous · Answer

Is it -
3

 -1

 0

 1

anonymous · Answer

ok hold on

anonymous · Answer

Thank you for giving me b and a, I think I've got it from here. Thank you so much @johnweldon1993

anonymous · Answer

Gave you best response :) Can't believe I didn't remmeber such a simple equation..

johnweldon1993 · Answer

Lol dont worry about it, there's too many formulas to memorize in math but everything can be found from basic equations

Such as this one can be found by manipulating the slope formula

anonymous · Answer

Just making sure the answer is 1, correct? @midhun.madhu1987 @

midhun.madhu1987 · Answer

I am sorry... am not good at this...

johnweldon1993 · Answer

Well at -4 we appear to be at 4 and at 1 we appear to be at -1 so

$$\large \frac{-1 - 4}{1 - (-4)} = \frac{-5}{5} = -1 $$