math 8 refresher #19

y = x - 9 
y = -9

• 0, -9
• -1, 2
• -18, -9
• -81, -3

y = x + 20
y = 6x

• 4,24
• 0,24
• -4,21
• 26,0

Solve this system of equations. 
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

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

What type of slope does the following graph have?

• Postive
• Negative
• Zero Slope
• Undefined

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Which equation matches the table below?

• y = 3x - 6
• y = -3x + 6
• y = 3x + 6  
• y = -3x - 6

Which equation best represents the relationship between x and y in the table shown?

• y=5x + 10
• y=1/5x+5
• y= 5x+5 
• y=10x+5

What is the algebraic equation for the following table?

• y = x + 3

• y = 3x

• y = x ÷ 3

• y = x - 3