Exponential Rules

Determine the range for the function
f(x)=3(2)^x-4+5

• [5,∞)

• (5,∞)

• [4,∞)

• (4,∞)

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

To solve 8 = 2^5x+7, you would need to re-write 8 as what base?

• 8

• 4

• 2

• Cannot be determined

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 for n:  25^n-4 = 5³ⁿ⁺¹

• n=7

• n=-9

• n=8

• n=1

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

• x = 5

• x = -5

• x = 1/5

• x = -1/5

Solve for x

• 1

• 4

• 1/2

• no solution

Determine the asymptote for the function
f(x)=3(2)^x-4+5

• x=4

• y=4

• x=5

• y=5