Unit 4 & 5

Which of these represents point-slope form of a linear equation?

• y - y₁ = m(x - x₁)

• Ax + By = C

• y = mx + b

Which of these represents slope-intercept form of a linear equation?

• y - y₁ = m(x-x₁)

• Ax + By = C

• y = mx + b

Write the equation in point-slope form of the line that passes through the given point and has the given slope.

(4, -7); m = -1/4

• y + 7 = -1/4(x - 4)

• y - 4 = -1/4(x + 7)

• y + 7 = 4(x - 4)

• y - 7 = -1/4(x - 4)

Write the equation in point-slope form of the line that passes through the given point and has the given slope:
 (-2, -1); m= -3

• y + 1 = -3(x - 2)

• y + 1 = -3(x + 2)

• y - 1 = 3(x - 1)

• y + 2 = -3(x + 1)

For the equation
y + 1 = -3(x - 5),
the line contains the point (5, -1) and has a slope of?

• -1

• 1

• -3

• 5

• (3 ,4)

• (1/5, 0)

• (-3, -4)

• (4, 3)

What is the point given in the following equation?

y - 2= 3(x + 1)

• (1,3)

• (-1,2)

• (1,-2)

• (-2,1)

What is the letter that represents slope?

• y

• b

• m

• x

What is the slope of the line that passes through these two points (8, 4) and (5, 3)?

• 3

• -1

• -1/3

• 1/3

What is the equation of a line with a slope of 4 and a y-intercept of 2?

• y = -4x + 2

• y = -2x + 4

• y = 4x + 2

• y = 2x + 4