2.4 IDWD Notes - Writing Equations

Multiple Choice

Write an equation of the line that has the given slope and Y-intercept.

m = -2, b = 1

• y = x - 2

• y = 2x - 1

• y = -2x + 1

• y = -2x -1

Multiple Choice

Write an equation of the line that has the given slope and Y-intercept.

m = 4, b = 0

• y = 4x

• y = 4

• x = 4

• y = x + 4

Multiple Choice

Write an equation of the line that has the given slope and Y-intercept.

m = -3/4 , b = -2

• y = -2x - 3

• y = -3x + 4

• y = -3/4 x - 2

• y = 3/4 x + 2

Multiple Choice

Write an equation of the line that has the given slope and Y-intercept.

m = 0, b = 3

• y = 3x

• y = x + 3

• y = 3

• y = -3

Multiple Choice

Write the equation for each in point-slope form.

(-1, 3), m = -2

• y + 1 =-2(x - 3)

• y - 3 = -2 (x + 1)

• y + 1 = -2(x +3)

• y - 3 = 2(x - 1)

Multiple Choice

Write the equation for each in point-slope form.

(-1, -2), m = 4

• y + 1 = 4(x + 2)

• y -1 = 4(x - 2)

• y + 2 = 4(x + 1)

• y - 2 = 4(x - 1)

Multiple Select

Write the equation for each in point-slope form.

(2, -4) m = 0

• y - 4 = x - 2

• y + 4 = 0

• y = -4

• y = 2(x + 4)

Multiple Select

Write the equation for each in point-slope form.

(6, 3), m = -½ 

• y + 3 = -1/2 (x + 6)

• y - 3 = -1/2 (x - 6)

• y = -1/2 x + 6

• 1/2 x + y = 6

Multiple Select

Write the equation for each in point-slope form.

(1, -3), m = ¾

• y + 3 = 3/4 (x - 1)

• y - 3 = 3/4 (x - 1)

• y = 3/4 x - 15/4

• y = 3/4 x - 3

Multiple Select

Write the equation given the intercepts

1. (0, -3) , (-2, 0)

• y + 3 = -3/2 (x - 0)

• y + 3 = -3/2 x

• y = -3/2 x - 3

• y - 0 = -3/2 (x + 2)

Multiple Select

Write the equation for each in standard form.

1. (0, -1), (4, 0) 

• y + 1 = 1/4 x

• y = 1/4x

• • y = 1/4x - 1

• y - 4 = 1/4 x

Multiple Choice

Find the equation through the points

(1, 3) and ( 4, 2)

• y + 3 = 1/3 (x + 1)

• y - 3 = -1/3 (x - 1)

• y - 2 = -1/3 (x - 4)

• y + 2 = -1/3 (x + 4)

Multiple Choice

Find the equation through the points

(-2, 1) and (-1, -1)

• y + 1 = -2(x + 1)

• y - 1 = -2(x + 2)

• y + 1 = 2(x + 2)

• y - 1 = 2 (x + 2)