Exponential Growth Solve for X

A new savings account is opened with $400 and gains 3% every year. What is the exponential function?

• f(x)=400(.97)^x

• f(x)=400(1-0.03)^x

• f(x)=400(1.03)^x

• f(x)=400(0.03)^x

If you were solving for x using the same base method, what would be the best base to pick?
9^x+8 = 81

• 9

• 81

• 2

• no common base

Solve 3³ = 3^{4x + 2}

• x = ¼

• x = -¼

• x = ½

• x = -½

Solve: 2^x = 4^x+1

• -2

• 2

• -3

• 3

Solve: 9^8-x = 27^x-3

• x = 5

• x = -5

• x = 1/5

• x = -1/5

Solve for x

• 5/3

• 2

• 3/5

• No solution

Solve for x

• 1

• 4

• 1/2

• no solution

A new savings account is opened with $1500 and gains 1.5% annual interest. What is the exponential function?

• f(x)=1500(1+1.5)^x

• f(x)=1500(1+0.015)^x

• f(x)=1500(1.00375)^x

• f(x)=1500(1.5)^x

Solve for x:

2(3)^x+1 = 36

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What is the equation that represents the exponential function in the image below?

• y=3(½)^x

• y=3(2)^x

• y=(2)^x

• y=2(3)^x