Linear Functions Review

.Use the graph to determine the equation of the line in slope-intercept form.

• y = 3x + 3

• y = 1/3x + 3

• y = -1/3x +3

• y = - 3x + 3

What is the y-intercept of this line?

• -3

• -2

• 0

Write the equation in slope-intercept form to represent the line that is graphed.

• y = 1/2x + 1

• y = -2x -2

• y = 2x +2

• y = 2x - 2

What is the slope of the line graphed below?

• -2

• Zero

• Undefined

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)

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

• -1
• 1
• -3
• 5

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

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

Write the equation in point-slope form for the line that contains the points
(-2, -3), (4, 3)

• y - 3 = 1(x - 2)
• y + 3 = 1(x + 2)
• y -3 = -1(x + 2)
• y + 3 = -1(x - 2)

What is the point slope form equation through the point (4, -8) with a slope of -2?

• $y-4\ =\ -2\left(x-8\right)$

• $y+4\ =\ -2\left(x+8\right)$

• $y+8=-2\left(x-4\right)$

• $y-8=-2\left(x+4\right)$

Write the equation in point-slope form

for the line that contains the points

(3, -5) and (5, - 1)

• y - 5 = 2(x + 3)

• y + 5 = 2(x - 3)

• y - 3 = 2(x + 5)

• y + 3 = 2(x - 5)