Quiz about CBA 6 Review

Question 1

Independent values =

Accepted Answer

x values

Answer

y values

Question 2

A child wants to collect at least 8 rocks for his collection. The child has already collected 2 rocks. Which inequality describes this situation?

Accepted Answer

$$r\ +\ 2\ \ge\ 8$$

Answer

$$r\ +\ 2\ \le\ 8$$

Answer

$$r\ +\ 2\ <\ 8$$

Answer

$$r\ +\ 2\ >\ 8$$

Question 3

Which graph best represents the relationship between x and y in the equation

y = 3.5x ?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 4

Alma reads 2 books each week. Which number line best represents the number of weeks it will take her to read at least 28 books?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 5

The graph shows the cost to rent a surfboard for different amounts of time.

Which list best represents the dependent values of the graphed points?

Accepted Answer

7.50, 15, 22.50, 30, 37.50, 45

Answer

1, 7.50, 2, 15, 3, 22.50, 4, 30, 5, 37.50, 6, 45

Answer

5, 10, 15, 20, 25, 30, 35, 40, 45

Answer

1, 2, 3, 4, 5, 6

Question 6

Saritha will construct a rectangle that has a height of 4 units and an area of up to 48 square units. Which inequality represents all the possible lengths in units of the bases, b, that Saritha can use to construct this rectangle?

Accepted Answer

$$b\ \le\ 12$$

Answer

$$b\ \le\ 44$$

Answer

$$b\ \ge\ 52$$

Answer

$$b\ \ge\ 192$$

Question 7

The back of a window is shaped like a trapezoid. The dimensions of the back of the window are shown in the diagram.

Write an equation for A, the area of the back of the window using the given dimensions.

Accepted Answer

$$A\ =\ \frac{1}{2}\ \left(5\ +\ 3.5\right)\ x$$

Answer

$$A\ =\ \frac{1}{2}\ \left(5\ +\ 3.5\right)\ y$$

Answer

$$A\ =\ \frac{1}{2}\ \left(5\right)\ +\ \left(3.5\right)\ y$$

Answer

$$A\ =\ \frac{1}{2}\ \left(5\right)\ +\ \left(3.5\right)\ x$$

Question 8

Mr. Smith has $50 to spend at a museum. A ticket to the museum costs $7. He can spend p dollars to buy other things at the museum.

Which inequality can be used to find the possible values for p?

Accepted Answer

$$p+7\le50$$

Answer

$$p-7>50$$

Answer

$$p-7<50$$

Answer

$$p+7\ge50$$

Question 9

Solve this inequality:

3x < 33

Accepted Answer

$$x\ <\ 11$$

Answer

$$x\ >\ 11$$

Answer

$$x\ >\ 99$$

Answer

$$x\ <\ 99$$

Question 10

The front windshield is in the shape of a rectangle. The windshield has an area of A square feet. The width of the windshield is 6 feet.

Which equation represents this situation when h = height?

Accepted Answer

$$A\ =\ 6h$$

Answer

$$h\ =\ A6$$

Answer

$$A\ =\ \frac{h}{6}$$

Answer

$$A\ =\ \frac{6}{h}$$

Question 11

Dependent values =

Accepted Answer

y values

Answer

x values

Question 12

Alejandra has $600 in her checking account. She wants to spend part of this money on a computer. She wants to have at least $350 left in her checking account after buying the computer.

Which inequality represents all possible values of t?

Accepted Answer

$$t\ \ge\ 350$$

Answer

$$t\ \le\ 850$$

Answer

$$t\ \le\ 350$$

Answer

$$t\ \ge\ 850$$

Question 13

Which number line represents the solution 5x < 30 ?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 14

The bases of a trapezoid are 8 centimeters and 12 centimeters, and the height is h centimeters. Which equation can be used to represent A, the area of the trapezoid in square centimeters?

Accepted Answer

$$A=\frac{1}{2}\left(8+12\right)h$$

Answer

$$A=\frac{1}{2}\left(8\cdot12\right)h$$

Answer

$$A=\left(8+12\right)h$$

Answer

$$A=\left(8\cdot12\right)h$$

Question 15

Which inequality is true when x = 5 ?

Accepted Answer

$$9x\ \le\ 45$$

Answer

$$-9x\ >\ 45$$

Answer

$$-9x\ \ge\ 45$$

Answer

$$9x\ <\ 45$$

Question 16

Brenda earns $16.45 per hour at her job. How many hours does she need to work in order to earn more than $613.80?

Which inequality is represented by this situation, where x = how many hours?

Accepted Answer

$$16.45x>613.80$$

Answer

$$613.80x>16.45$$

Answer

$$16.45x<613.80$$

Answer

$$613.80x<16.45$$

CBA 6 Review

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