Question

can someone check my work please?

Answer 1

f(2)=2^2-4(2)+1
f(2)= -3

Answer 2

f(6)=6^2-4(6)+1
f(6)=13

so the average rate of change is -16?

Answer 3

@batmano3

Answer 4

@sweetburger

Answer 5

Let's start with the formula

\[m=\frac{ f(b)-f(a) }{ b-a }\]

I would check the arithmetic. Remember about PEMDAS

Answer 6

Everything was plugged in correctly though

Answer 7

so whats wrong? i still get -3 and -13

Answer 8

Let's do the firs

Oh yeah, you're right. My bad

\[\frac{ 13-(-3) }{ 6-2}\]

Answer 9

so the average rate of change is 4?

Answer 10

Right, two negatives make the positive then we divide by 4

Answer 11

so 4 is the answer?

Answer 12

Yeah

Answer 13

thank you for your help :)

Answer 14

You're welcome, good job