Question

If f(x) = -7x + 22
f(2)=
f(x+1)=

Answer 1

?

Answer 2

f(x)= -7(2)+22
f(x)= -14+22 ----> f(x)= 8

f(x)= -7(x+1)+22
f(x)= -7x -7+22 ----> f(x)= -7x + 15

f(x) is simply y so when you have a number where the x would be you substitute it for X in the equation.

Answer 3

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
What he said.

Although, this is the history section. This question would go in the Math section. Click on "Find More Subjects" to get there. Hope this helps!

@Toonez