Question

Which of the following functions increases, going upwards from left to right on a graph?
A. y = 2(1/3)x
B. y = -2(3)x
C. y = 2x + 6
D. y = 3(1/2)x

Answer 1

I'm assuming these are exponential equations right?

Answer 2

or is that assumption way off?

Answer 3

Exponential Growth and Decay

Answer 4

ok thanks

Answer 5

first off, B is negative so that's out because that function is decreasing over its entire domain

Answer 6

A and D have bases that are smaller than 1 (1/3 is smaller than 1, so is 1/2)

so this means you'll have exponential decay and that also means you have a decreasing function

Answer 7

so A and D are out as well

Answer 8

Okay

Answer 9

make sense?

Answer 10

yeah it does now

Answer 11

ok great