# 90 Lines & Systems Test

Find the slope of the graphed line.

• -1/2

• 1/2

• -2

• 2

Which of the following is always true about the graph of a horizontal line?

• The graph will always have a positive y-intercept.

• The graph will always have a negative y-intercept.

• The slope is undefined.

• The slope is zero.

What is the equation of the graphed line?

• y = -1/4x + 2

• y = 1/4x + 2

• y = -4x + 2

• y = -4x + 2

Which of the following has a positive slope and a negative y-intercept?

• y = 2x + 4

• y = -15x - 6

• y = 7x - 10

• y = -3x + 5

State the solution for the graph:

• One Solution

• Two Solutions

• Infinitely Many Solutions

• No Solution

8x + 4y= 16

• y = -8x + 16
• y = 2x -4
• y = -2x + 4
• y = -8x + 12

 $y=\frac{1}{3}x-2$  
 $y=-\frac{5}{2}x+5$  
Which of the following graphs represents the system of equations pictured?

• 
• 
• 
• 

What is the solution to this system of equations?

y = -2x - 8

y = x + 1

• (3, 2)

• (-3, -2)

• (-2, -3)

• (2, 3)

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

How many solutions?

• One Solution
• No solution
• Infinitely Many Solutions