Writing Equations in Slope-Intercept Form

Slope = 4  Point (-2, 1)

• y = 4x +9
• y=4x-7
• y=4x+7
• y=4x-9

Slope = 3/5  Point (10, -15)

• y=3/5x-21
• y=3/5x-9
• y=3/5x-35
• y=3/5x

slope 6
point (1,8)

• y = 6x + 2
• y = 6x - 2
• y = -3/8x + 2
• y = 3/8x + 2

Goes through (-3, -4) and (3, 4)

• y = 3/4x + 4
• y = 3/4x + 0
• y = 4/3x + 0
• y = 4/3x + 4

Goes through points (-2, -1) and (-3, 5)

• y = 6x + 13
• y = -6x - 13
• y = -1/6x + 1
• y = 1/6x - 1

Write equation of the line containing (-1,-3) and (1,1)

• y = -2x + 1
• y = 2x -1
• y = 2x + 7
• y = -2x - 1

What does 'b" represent in y=mx=b

• y-intercept
• beans
• nothing
• slope

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

• 3
• 4x
• 4
• 3x

A line has a slope of 2 and passes through the coordinate (1,5). What is the y-intercept of the line?

• b = 1

• b = 2

• b = 3

• b = 5

Answer explanation

Use the equation y = mx + b. Plug in 2 for m, 1 for x, and 5 for y, and solve for b.

A line has a slope of 1/3 and passes through the coordinate (6,4). What is the equation of that line written in slope-intercept form?

• y = 1/3x + 2

• y = 1/3x + 4

• y = 3x + 2

• y = 3x + 4

Answer explanation

Use the given slope and the y-intercept from the previous question.