The graph of f(x) = 2x + 1 is shown below. Explain how to find the average rate of change between x = 0 and x = 3.

Question

seb.cal · Answer

The 'x' is raised as an exponent.

seb.cal · Answer

@welshfella @ILovePuppiesLol help

seb.cal · Answer

@imqwerty @Mehek14

seb.cal · Answer

@nincompoop @sleepyjess please help.

.mehek. · Answer

Put 0 for x and find what f(0) is equal to

Do the same for x = 3

seb.cal · Answer

ok, and that'll be the answer..? or is that just one step?

.mehek. · Answer

f(0) = 2 * 0 + 1 = ?

f(3) = 2 * 3 + 1 = ?

.mehek. · Answer

First step

seb.cal · Answer

f(0) = 1 and f(3) = 7

.mehek. · Answer

Ok now we use the formula to find rate of change

$\dfrac{y_2-y_1}{x_2-x_1}$

$\dfrac{7-1}{3-0}$

seb.cal · Answer

= 6/3 --> 2!

.mehek. · Answer

There you go :)

seb.cal · Answer

Thanks! I was getting caught up in the formula process. I was putting in 9 instead of 7 :P

seb.cal · Answer

Thank you :)

.mehek. · Answer

You're welcome ^_^