Box Plots — Cumulative exam

Question 1

What are the factors of 2x2 + 3x – 54? Select two options.2x – 92x – 62x + 6x – 6x + 6

Revolt · Accepted Answer

2x – 9; x + 6

Question 2

A graph shows the horizontal axis numbered 4 to 16 and the vertical axis numbered 4 to 12. Points and a line show an upward trend.

Revolt · Accepted Answer

0.872

Question 3

What is f(x) = 7x2 + 42x written in vertex form?

Revolt · Accepted Answer

f(x) = 7(x + 3)2 – 63

Question 4

The minimum of the graph of a quadratic function is located at (–1, 2). The point (2, 20) is also on the parabola. Which function represents the situation?

Revolt · Accepted Answer

f(x) = 2(x + 1)2 + 2

Question 5

The relative frequency table shows the results of a survey in which parents were asked how much time their children spend playing outside and how much time they spend using electronics.Given that a child spends at least 1 hour per day outside, what is the probability, rounded to the nearest hundredth if necessary, that the child spends less than 1 hour per day on electronics?

Revolt · Accepted Answer

0.88

Question 6

Which equation has an a-value of 1, a b-value of –3, and a c-value of –5?

Revolt · Accepted Answer

0 = –3x – 5 + x2

Question 7

The monomial 36x4 is a perfect square. What is the square root of 36x4?

Revolt · Accepted Answer

6x2

Question 8

The first few steps in deriving the quadratic formula are shown.

Revolt · Accepted Answer

The distributive property needs to be applied to determine the value to add to the left side of the equation to balance the sides of the equation.

Question 9

The histogram shows the duration, in minutes, of movies in theaters.

Revolt · Accepted Answer

The median is less than the mean.

Question 10

The two-way table represents data from a survey asking students whether they plan to attend college, travel, or both after high school. Which is the marginal relative frequency for students who plan to attend college? Round the answer to the nearest percent.

Revolt · Accepted Answer

82%

Box Plots — Cumulative exam Answers

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