8.5I-Writing Equations in the Form y=mx+b (Verbal)

Stella got a new internet plan.  The company charges her $0.15 for each minute plus a monthly fee of $40.  What equation would be used to calculate how much the cost is for her new internet plan?

• y=0.15x-40
• y=0.15x+40
• y=0.15-40x
• y=0.15+40x

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

Randy charges his tenants $425 each 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

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

A local donut shop charged $6.50 for a dozen and provided a coupon in the newspaper for $0.75 discount. What is the equation that represents the value of a customer's order who uses the new coupon with their order?

• y = 6.50x - 0.75
• y = 6.50x + 0.75
• y = 6.50x - 1.50 - 0.75
• y = 5x - 0.75

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

A towing company charges a flat fee of $45 plus $2 a mile to tow vehicles. Which equation shows the relation between y, the total cost, and x, the number of miles a vehicle is towed?

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• 
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A streaming movie company charges a $15 annual fee plus $3 per movie for rentals. You want to rent a movie. What equation can you use to find how much money you will spend in renting a movie?

• y = 15x+3

• y = 45x

• y = 3x + 15

• y = 18x

A plant is 5 cm tall and growing at a rate of 3 cm a month. Which equation represents the plant's growth in height?

• y = 5 + 3

• y = 5x + 3

• y = 5 + 3x

• y = 5 - 3x

You plan to go snowboarding. The resort charges $15 an hour in addition to $25 to rent a board. Write an equation that represents the cost to go snowboarding for the day.

• y=15x-25
• 15x+25y=100
• 25x+y=15
• y=15x+25

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

There were approximately 11,000 students enrolled at Western Carolina last year. This figure goes up by about 225 students each year. Create an equation that can be used to find y, the total number of students, if x represents the number of years?

• y=225x+11000

• y=11000x+225x

• x=225y+11000

• y=225x

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Suppose that the water level of a river is 34 feet and that decreases at a rate of 0.5 foot per day. Write an equation that can be used to find y, the water level, if x represents the number of days?

• y= - 0.5x+34

• y= 0.5x+34

• y= - 34x+0.5

• y= 34x+0.5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

Sonia has $40 in her lunch account and pays $2 each day to eat lunch.

• y = 40 + 2x

• y = 40 - 2x

• y = 2 + 40x

• y = 2 - 40x

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2