Question

This is the table for the billions of dollars in book sales for the first four years after 1990, using the equation y=19(1.057)^x. They have been rounded to the nearest whole number.

Years After 1990: x 1 2 3 4
Billions of $: y 20 21 22 23

Which is incorrect?

A. 1
B. 2
C. 3
D. 4

Answer 1

do you have a calculator?

Answer 2

Yesh

Answer 3

type the formula into the calculator, then plug in the each given x value into the formula, and see what value comes out. Then check to see if the given y values match up

Answer 4

Alright thanks! (:

Answer 5

D is incorrect