Can you guys help i’m kinda struggling

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

How is working backward similar to solving an equation?

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1