Linear Equations

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Find the equation of the line in slope-intercept form. 

• y = - 1/4x - 3
• y = 1/3x + 3
• y = - 1/4x + 2
• y = 1/3x -3

Find the slope

• -5/3
• -3/5
• 5/3
• 3/5

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2
• -1/2
• 2
• -2

Solve for y
8x + 2y = -10

• y = -8x + 5
• y = -4x - 5
• y = -¹/₄ x - 10
• y = -¹/₄ x - 5

What is the slope a horizontal line?

• -1
• undefined
• 1
• 0

Write equation of the line containing (4,2) and (3,5)
_{(hint: plot points on a graph)}

• y = -3x + 14
• y = 3x + - 4
• y = -3x - 4
• y = -3x + 10

Write the equation of the line that passes through the point (1, -1) and has a slope of -4.
_{(hint: plot point on a graph and use m to find b)}

• y = -4x + 3
• y = -4x - 3
• y = -4x + 5
• y = -4x - 5

What is the equation of this line?

• 0
• undefined 
• y = -2
• x = -2

Solve the equation for y
2x - 4y = 8

• y = 1/2x - 2
• y = 2x + 2