Question

for f(x)=3x-7 find: f(2)

Answer 1

I don't understand

Answer 2

its beacuse u have to plug in 2 for all of x values in the fucnction thats why it says f(2).
f(x)=3x-7 f(2)=3(2)-7 ...
replace every 'x' with '2'
f(2) = -1

Answer 3

f(2)= 3(2)-7
F(2)= -1

Answer 4

Thank you

Answer 5

ur welcome :D

Answer 6

It's confusing that f(2) doesn't mean the same thing as 3(2) here!

Answer 7

Find the equation of the line you think best represents the average time to brake at the given speed according to the graph:
S=6x+60
S=6x-60
S=-6x+60
S=6x-60

Answer 8

I have the graph, but can not show on here.

Answer 9

Please give me hint. Thank you.