# Unit 3 Test Review: Question Preview (ID: 23803)

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**Identify the slope and y-intercept in the following equation. y=-3x + 7**

a) slope= -3 y-intercept= 7/1

b) slope= 7 y-intercept= -3

c) slope= -3 y-intercept= 7

d) slope= -3/1 y-intercept= -7

**Netflix charges $5.50 for a movie plus $1 per night. Blockbuster's charges $7 for a movie plus $0.50 per night. Write an equation to represent each situation.**

a) Netflix: y= 1x + 5.50 Blockbuster: y= .50x + 7

b) Netflix: y= 1x - 5.50 Blockbuster: y= .50x - 7

c) Netflix: y= 5.50x + 1 Blockbuster: y= 7x + .50

d) Netflix: y= 5.50x - 1 Blockbuster: y= 7x - .50

**Solve using substitution when given two equations: y= 1x + 5.50 and y= .50x + 7**

a) (4, 9)

b) (3, 8.50)

c) (8.50, 3)

d) (9,4)

**Given the points (1,5) and (4,11), use the slope equation to find the slope.**

a) slope= 6/1

b) slope= 2/3

c) slope= 6/3

d) slope= 3

**Whens using a graph to solve a system of equations, what point on the graph shows the solution?**

a) The point where both lines intersect.

b) The point where one line is higher than the second line.

c) The starting point.

d) The point where the line ends.

**N/A**

a) N/A

b)

c)

d)

**N/A**

a) N/A

b)

c)

d)

**N/A**

a) N/A

b)

c)

d)

**N/A**

a) N/A

b)

c)

d)

**N/A**

a) N/A

b)

c)

d)

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