Writing Equations

A fitness club has 80 members. The club's membership increases by 15 each month. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x

• y=15x+80

• y=x+15

• y=80x+15

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Randy charges his tenants $425 per month to rent his houses plus $600 security deposit. What equation best represents how much his tenants will now have to pay?

• y = 425x + 600

• y = 425 + 600x

• y = 400x + 625

• y = 400 + 625x

Adrianna has $20 in her savings account. She will add $5 every week to it. Which equation represents this situation?

• y=25x

• y=20x+5

• y=5x+20

• y=5x

Margaret is a waitress at The Seafood Bonanza. She earns $3 an hour plus 0.90 of her tips. Write an equation for her salary, S, if she works h hours.

• S=3h + 0.90

• S = 90+ 3h

• S = 3 + 90h

• S = 3h + 9.0

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 15 + 0.20x
• C =15 (0.20x)
• C = 15 + x + 0.20
• C = 0.20 + 15x

Tags

CCSS.HSF-BF.A.1A

Write an equation in slope-intercept form

(-4, 46) ; m= 9

• y=3/4x - 9

• y=9x - 10

• y= 2x +12

• y = 1x +9

(1,2) ; m=7

• y= 7x - 5

• y= 5x +5

• y= 1/2x - 6

• y = 7x +5

(3,1) (-2,-4)

• y= 1x - 2

• y= 2x + 3

• y = 3x - 2

• y=7x - 1

Which equation is being represented by this line?

• y = -1x + 2
• y = 1/2x + 2
• y = 3x -4
• y = -3x +2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write the equation of the line.

• y = -1/3x - 2
• y = 1/3x - 2
• y = 3x - 2
• y = -3x - 2

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4