Solving Exponential and Logarithmic Equations

Question 1

Which graph shows the solution to the equation 4x – 3 = 8?

Revolt · Accepted Answer

C: mc001-3.jpg

Question 2

To solve e4 – 3x = x + 9 by graphing, which equations should be graphed?

Revolt · Accepted Answer

B: y = x + 9; E: y = e4 – 3x

Question 3

y = 4e2 + 2x and y =

Revolt · Accepted Answer

B: x – 3

Question 4

What is the solution to the equation ? Round to the nearest tenth.

Revolt · Accepted Answer

A: 0.6

Question 5

t » years

Revolt · Accepted Answer

6

Question 6

The solution is approximately 1.7 because it is the x-value of the intersection of the functions.The solution is approximately –3.5 because it is the y-value of the intersection of the functions.There is no solution to the equation.The two solutions to the equation are 1.7 and –3.5 because that is the intersection of the functions.

Revolt · Accepted Answer

A: The solution is approximately 1.7 because it is the x-value of the intersection of the functions.

Question 7

Find the solutions to the equation 102x + 11 = (x + 6)2 – 2. Which values are approximate solutions to the equation? Select two answers.

Revolt · Accepted Answer

A: –9.6; D: –2.4

Question 8

Identify the solutions. The of the points where the graphs of the equations intersect are the solutions to the original equation.

Revolt · Accepted Answer

B: x-coordinates

Question 9

The equation 4e2 + 2x = x – 3 has .

Revolt · Accepted Answer

A: no solution

Solving Exponential and Logarithmic Equations Answers

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