Question

Which graph best represents y = 2(5)^x ?

The answer choices are in the pictures. Please explain how you got your answer.

Answer 1

Graph A

Explanation:

To figure out which graph represents the equation, the easiest way to do this is by solving for some values, then matching up the points

Let's solve for x=1 and x=2

x=1

• 2(5)^1

• 2(5)
• 10
• (1,10)

x=2

• 2(5)^2
• 2(25)
• 50
• (2,50)

Graph A has both (1,10) and (2,50) on the line