Keystone Algebra Lesson 4.4 Practice

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

• y - y₁ = m(x - x₁)
• Ax + By = C
• y = mx + b

Write the slope-intercept form of the equation with the given point and slope.

Through ( - 1,4 ) and m = - 3

• y = x - 3

• y = - 3x + 1

• y = x + 2

• y= - 3x + 4

Write the slope-intercept form of the equation with the given point and slope.

m = 5 through ( - 1, - 3 )

• y = 5x + 2

• y = - 5x - 5

• y = - 5x + 2

• y = 2x - 5

What is the equation of the line that goes through the points ( 3, - 1 ) and ( 2, - 4 )?

• y = 3x - 4

• y = - 3x + 8

• y = 3x - 1

• y = 3x - 10

Write the equation of the line that passes through the points ( 0, - 5 ) and ( 4, 3 )

• y = 2x - 5

• y = 1/2x - 5

• y = 2x + 5

• y = 1/2x + 5

Write the slope-intercept form of the equation with the given point and slope.

Through ( 2, 5 ) and m= 1/2

• y = 1/2x + 4

• y = - 1/2x - 4

• y = 4x - 1/2

( 1, 2 ) and ( - 2, 5 )

• y = x + 3

• y = - x + 3

• y = - x + 1

• y = 3x + 3

Write the equation in slope-intercept form of the line that passes through the given point and has the given slope. (4, -7); m = -1/4

• y = -1/4x - 6

• y = -1/4x + 6

• y = -4x + 6

• y = -4x - 6

Write the equation in slope-intercept form for the line that contains the points
(3, -5) and (5, - 1)

• y = 2x + 11
• y = 2x + 1
• y = 2x - 1
• y = 2x - 11

Linda bought a Bloodgood Japanese Maple tree. In two years, the tree was 7' tall and in 10 years the tree grew to its mature height of 15'. Write an equation in slope-intercept form that shows the number of years, x, it takes to reach a certain height, y.

• y = - x + 9

• y = x + 5

• y = x - 9

• y = -x + 5