Algebra Unit Review

What is the equation of the line that passes through the point (2, -6) and has a slope of zero?

• x=2

• y=2

• x=-6

• y=-6

What is the equations and slope of the line shown on the grid?

• x = -4; m = 0

• y = -4; m = 0

• x = -4; m = undefined

• y = -4; m = undefined

Given the equation y = 9x - 4, what is the slope?

What is the slope of the line that passes through the points (4, -8) and (-2, 12)?

The value of y varies directly with x. If x=6, then y=18. What is the value of x when y=48?

• 16

• 144

• 8

• 288

Write an equation in slope-intercept form when given (4, -8) and (-2, 12).

What is the equation in slope-intercept form of the line that passes through the points (10, 7) and (5, 1)?

The function y = 2.93 + 3.06(x - 2) can be used to determine the cost in dollars to fill a car's gas tank with x gallons. What is the rate of change of the cost in dollars with respect to the number of gallons (cost per gallon)?

• $2.93 per gallon

• $5.99 per gallon

• $6.12 per gallon

• $3.06 per gallon