Question

Given the exponential function f(x)=(3/2)^x, what would be a vertical shift of -2?

Answer 1

this the function -2

so y = (3/2)^x - 2

Answer 2

cute the y axis at x = -1

Answer 3

why wouldn't it be +2?

Answer 4

think of it this way (3/2)^0 = 1 y intercept at y = 1

you want to move the graph down 2...

so (3/2)^0 - 2 = 1 - 2 y intercept at y = -1

to move up add 2

(3/2)^0 + 2 1 + 2 y intercept at y = 3

Answer 5

ah..i got it now...my teacher really confused me on this step

Answer 6

thanks