Systems of Equations Part I

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (0, 1)

Solve by graphing.
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Solve the following system by graphing.  What is the solution?

• (-4, 2)
• (4, 2)
• (2, -4)
• (2, 4)

y = -2x + 18

y = 8

Solve using substitution.

• (5, 8)

• (-5, 8)

• (2, 8)

• (-2, 8)

What is the solution to this system?
x - y = 6
y = 2x - 5

• (1,3)
• (-1,3)
• (-1,-7)
• (1,-7)

In the following equation, what is the y-intercept?  
y = -3x + 7

• -3
• 7
• -3/7
• 3

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• x