Pre-Calculus Quarter 2 Exam Review

One zero of the function f(x) = 2x³ - 9x² - 123x - 220 is -4. What is another zero?

• 18

• 4

• 11

• -7

Odd multiplicities have which effect on the x-axis?

• Crosses the x-axis

• Tangent to the x-axis

Even multiplicities have which effect on the x-axis?

• Cross the x-axis

• Tangent to the x-axis

A function has the following zeros: -5 (multiplicity of 3), 9 (multiplicity of 2), -2, and 4. Which of the following polynomial functions represents this description?

• y = (x + 5)³(x - 9)²(x + 2)(x - 4)

• y = (x + 5)³(x - 9)²(x + 2)⁷(x - 4)⁷

• y = (x + 5)³(x - 9)²(x + 2)

• y = (x + 5)(x - 9)(x + 2)(x - 4)

Tags

CCSS.HSA.APR.B.3

Find the inverse of the function.

 $y=4\log_5\left(x+7\right)$  

•  $y=\frac{5^x+7}{4}$  
  

•  $y=5^x-7$ 
  

•  $y=4\cdot5^x-7$  
  

•  $y=5^{\frac{x}{4}}-7$  
  

Tags

CCSS.HSF-BF.B.4A

Find the horizontal asymptote of the function.

 $f\left(x\right)=\frac{x-2}{2x+1}$  

• y = -2

• none

• y = 0

• y = 1/2

Tags

CCSS.HSF-IF.C.7D

Simplify.

• 
• 
• 
• 

What is the solution to this system of equations?

y = 4x + 3

2x - 3y = 21

• (3,- 9)

• (-3, -9)

• (-3, 9)

• (0, 1)

Tags

CCSS.HSA.REI.C.6

CCSS.8.EE.C.8B

Solve the system of equations using inverse matrices.

x - 2y - 2z = -27

6x + y + 2z = 0

4x + 3y - z = 0

• (-3, 6, 6)

• (1, 1, 1)

• (-2, 6, 5)

• (-1, 2, 6)

Tags

CCSS.HSA.REI.C.9

The attendance at the art museum at the New Year’s opening was 250 people. The attendance has been increasing at a rate of 3% each month. How many people will attend by the end of a year?

• 356
• 265
• 5825
• 1329

Tags

CCSS.HSF.BF.A.2