Unit 3 Review - Linear Equations

Mary has a budget of $40 per month to spend on movies. She made a table showing the total amount of movie money she will have left after seeing the given number of movies.

Which equation, in standard form, represents the relationship between the number of movies, x, and the amount of movie money Mary will have left, y?

• 11x - y = 40

• 11x + y = 40

• x + 11y = 40

• x - 11y = 40

Tags

CCSS.6.EE.C.9

What is the equation in point slope form of the line that passes through the point ( 2 , 6 )

and has a slope of 5

• y + 6 = 5 ( x + 2 )

• y - 2 = 5 ( x - 6)

• y - 6 = 5 ( x -2)

• y + 2 = 5 ( x + 6)

What is an equation point slope form for the line that passes through the points ( -3 , 5) and

( 2, -3) ?

Which equation is point slope form equation for line AB?

• y - 5 = 2 ( x - 6)

• y - 6 = 2( x -5)

• y + 2 = 2 ( x + 3 )

• y - 3 = 2 ( x - 2)

What is the equation of the line in standard form?

• x - 6y = -9

• x + 6y = 9

• 3x - y = - 6

• 3 = y = 6

The rental rate for a cement mixer has a flat rate of $40 plus $20 for each day of the rental. The graph shows points representing the total cost of the rental.

Which linear equation, in slope-intercept form, models the total cost of the rental over time?

• y = 20 x = 40

• y = x + 50

• y = 50x + 25

• y = 25x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

If the line in the graph passes through the points (4, -2) and (6, 2), what is the slope of this line?

• 1

• 2

• -1

• -2

Tags

CCSS.8.EE.B.5

Joe purchased a tray of 48 petunias to plant in his garden. The graph shows points representing the number of flowers left to plant at several different times while Joe is planting.

Select from the drop-down menus to complete the equation, in standard form, that represents the relationship between the number of petunias left to plant, y, and the time, x, Joe has spent planting.

y = ____ x = _____

Tags

CCSS.8.EE.B.5

Write the equation of the graph

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Convert the following standard equation to slope intercept form y = mx + b

6x + 2y = 24

• - -2y = - 6x +24

• y = -3x + 12

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3