Slope Intercept form from WP

Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.

• y = 4x + 1.50

• y = 1.50x + 4

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

• y = 20x + 5

• y = 5x +20

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute.  Write an equation to model the situation.

• y = 30,000ft - 2,000ft(x)
• y = 30,000ft + 2,000ft(x)
• y = 30,000ft(x) - 2,000ft

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.IF.A.1

A canoe rental service charges a $20 transportation fee and $30 dollars an hour to rent a canoe. Write an equation representing the cost, y, of renting a canoe for x hours. 

• y = 20 + 30x
• y = 30 + 20x
• y = 50x
• y = 60x

Tags

CCSS.6.EE.C.9

What does "m" represent in y=mx+b?

• y-intercept
• slope
• macaroni
• nothing

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

A large one-topping pizza costs $8.99. Additional toppings are $0.49 each. How much would a pizza cost, c, if there are t additional toppings?

• c = 0.49t + 8.99
• c = 0.49t - 8.99
• c = -0.49 + 8.99
• c = -0.49 - 8.99

Tags

CCSS.6.EE.C.9

Rufus has 100 pounds of aluminum cans and plans to collect 25 pounds each week. How many pounds of aluminum cans, p, will Rufus have after w weeks?

• p = 125w
• p = 25w + 100
• p = 100w + 25
• p = -25w + 100

Tags

CCSS.6.EE.C.9

A tank contains 55 gallons of water. Water leaks out at a rate of 8 gallons per minute. How much water, w, is remaining in the tank after m minutes?

• w = 8m - 55
• w = 8m + 55
• w = -8m + 55
• w = -8m - 55

Tags

CCSS.HSF-BF.A.1A

Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for the water level, L, after d days. 

• L = 34 - 0.5(d)
• L = 34(d) - 0.5
• d = 34 - 0.5(L)

Tags

CCSS.HSF-BF.A.1A

For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. 

• C = 5h + 3
• C = 3h + 5
• H = 5c + 3
• H = 3c + 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2