Solving Using Exponents and Logarithms

Solve the equation.
4^x+1 = 8^2x–3

• x = –7/4

• x = –4/11

• x = 11/4

• x = 7/11

• 4.3820

• 2.4457

• 5.0321

• 1.9031

What is the range of the exponential function graphed?

• All real numbers

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

• 8

• 4

• 2

• Cannot be determined

6^3x - 3 = 56

Round your answer to the nearest ten-thousandth.

What will you type in the calculator when you solve the following equation? 2.8^x = 41

Mathematical Equivalence

ON

What will you type in the calculator when you solve the following equation? 2.8^x = 41

Mathematical Equivalence

ON

27^2x = 3^x-7

• -7/3

• -1

• -5/7

• -7/5

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

• x = 5

• x = -5

• x = 1/5

• x = -1/5

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81

• log₈₁3 = 4

• log₃81 = 4

• log₄81 = 3