M6L10 Linear Relationships and scatter plots

Using the linear model,  $y=1500x+900$  predict how much the elevator will weigh if there were 6 people on it. 

• 9000

• 9900

• 9009

• 900

Using the linear model,  $y=10x+10$  predict the temperature in Hayward in July ( x = 7). 

• 70

• 10

• 80

Derrick started up a charity for the local animal shelters. He started selling handmade dog leashes for $5. It cost him $120 to get the supplies to make the leashes. Write an equation for the amount of money he raises, A, if he sells x amount of leashes.

• A = 120 + 5x

• A = 120x + 5

• A = -120 + 5x

• A = 120 - 5x

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

Find the slope of the line that passes through
(10, 1) and (5, 2)

• 1/5
• -1/5
• 5
• -5

Which of the following situations could be descried by the equation y= -25x + 120

• There are 120 people in the football stadium, and 25 more are entering each hour.
• A plumber charges $25 for a house call and $120 per hour.
• A teacher has 120 students. Her third period has 25 students
• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Tags

CCSS.HSF.LE.B.5

To charge customers for printing color posters, a company uses the algebraic rule  $f\left(x\right)=2x+5$ , where x represents the number of copies ordered, and f(x) is the charge in dollars for the order. Which graph best displays the relationship?

• 
• 
• 
• 

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.LE.A.1

Which equation models the relationship between shipping fee and number of items?

• $S\left(n\right)=7.5\ +2.5n$

• $S\left(n\right)=7.5n+1$

• $S\left(n\right)=5+2.5n$

• $S\left(n\right)=7.5\ +10n$

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

This table shows the relationship between humerus

(arm bone) length and a woman’s height.

Predict the height of a woman whose humerus length

is 40 cm.

• 176 cm

• 178.75 cm

• 173.25 cm

• 181.5 cm

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.C.7

The equation  $2.25x+2y=18$  represents the amount of money spent on cans of Spaghetti O's and packages of Ramen noodles, y, that Joe bought for the food drive. If this equation were graphed, what would the point (0, 9) represent in context?

• Joe spent $9

• If Joe bought only Spaghetti O's, he could buy 9 cans.

• If Joe bought only Ramen noodles, he could buy 9 packages.

• Joe brought in 9 items

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1