Quiz about Review #2 23-24

Question 1

When a weightlifter lifts weights, the total weight lifted, y, is based on the weight of the bar and the weight of the plates. At Fitness Plus, a bar weighs 45 pounds and each plate, x, weighs 15 pounds. Which of the following represents this relationship?

(HINT** FIND THE RULE AND PUT IT IN DESMOS, THEN LOOK AT TABLE)

Accepted Answer

D.

Answer

A.

Answer

B.

Answer

C.

Question 2

A small local restaurant was plotting their profits in order to predict future income. A

scatterplot of the profits is shown below.

Which of the following is the most likely prediction of their profits in 15 months?

Accepted Answer

C.

Answer

A.

Answer

B.

Answer

D.

Question 3

Abby can swim 4 laps of a pool in 3 minutes. Which graph has a slope that best represents the number of laps Abby can swim?

Accepted Answer

Question 4

Which of the following mappings does not represent a function?

Accepted Answer

Question 5

Which of the following represents a linear function that is proportional?

Accepted Answer

D.

Answer

A.

Answer

B.

Answer

C.

Question 6

A line has a slope of 2/3 and a y-intercept of (0, 3). Which of the following represents the equation of the line?

Accepted Answer

A.

Answer

B.

Answer

C.

Answer

D.

Question 7

Julia was given the following numbers to put in order from greatest to least.

Which of the following shows the numbers in order from greatest to least?

Accepted Answer

C.

Answer

A.

Answer

B.

Answer

D.

Question 8

Which equation can be used to describe the relationship between x and y shown in the graph below? (HINT: Write your name on the graph and see if the slope is + or -)

Accepted Answer

Question 9

Which of the following is an equivalent equation to the equation shown below? (hint put it in desmos using x, and see which one is the same line)

Accepted Answer

D.

Answer

A.

Answer

B.

Answer

C.

Question 10

The two lines graphed on the coordinate grid each represent an equation.

Which ordered pair represents a solution to both equations?

Accepted Answer

D. (4, 5)

Answer

A. (0, -3)

Answer

B. (0, 3)

Answer

C. (5, 4)

Question 11

Which of the following sets of ordered pairs represents a function?

Accepted Answer

A. {(0, 0), (1, 2), (2, 2)}

Answer

B. {(0, 0), (0, 1), (0, 2)}

Answer

C. {(0, 0), (1, 2), (1, 3)}

Answer

D. {(0, 0), (0, 3), (2, 3)}

Question 12

Which of the following graphs shows a linear function with a slope of -4/5 and y-intercept of 4?

Accepted Answer

Question 13

Figure A, the small hexagon, was dilated with the origin as the center of dilation to create Figure B, the large hexagon.

Which rule best represents the dilation that was applied to Figure A to create Figure B?

Accepted Answer

C.

Answer

A.

Answer

B.

Answer

D.

Question 14

Circle A was dilated with the center of dilation at the origin to create Circle B as shown below. Which rule best represents the dilation that was applied to Circle A to create Circle B?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 15

A city made the scatterplot below to show the number of reported crimes as it relates to the size of the police force on duty. Which of the following is the most likely prediction of the size of the police force if there are 25,000 crimes?

Accepted Answer

C. 1,600

Answer

A. 1,000

Answer

B. 2,000

Answer

D. 1,200

Question 16

A painter charges $17 an hour plus $35 for general supplies. Which of the following equations represents the total cost, y, for the painter working x hours?