Linear Equation, Systems, and Functions

Which equation represents the line shown?

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

Write an equation for the table below.
x         y
1        8
2        11
3        14
5         20

• y = 1/3x + 5
• y = 3x + 5
• not linear
• y = 3x + 8

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Amber's savings account had a balance of $350 rolled over from the previous year. She set it up for $50 to be drafted out of her checking account and into her savings account every month. What information in this problem represents the y-intercept?

• 350
• 50
• -50
• -350

Tags

CCSS.8.EE.B.5

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Amber's savings account had a balance of $350 rolled over from the previous year. She set it up for $50 to be drafted out of her checking account and into her savings account every month. What information in this problem represents the slope?

• 350
• 50
• -50
• -350

For lunch, Amanda had a hamburger and some potato chips. The hamburger totaled 325 calories and each chip had 12 calories. Write a liner equation to represent the situation.

• y = 12 + 325
• y = 12x  + 325
• y = 325 - 12x
• y = 325x + 12

Tags

CCSS.6.EE.C.9

Billy's car needed repairs. The mechanic charged him $140 for the parts and an additional $48 an hour for labor. How many hours of labor did the mechanic work on the car if her total bill was $260?

• 3 hours
• 12 hours
• 2.5 hours
• 5 hours

Tags

CCSS.7.EE.B.4A

Which equation represents the linear relationship shown in the table.
x          y
-4        6
0         5
4         4
12       2 

• y = x - 6
• y = x + 6
• y = -x + 5
• y = -1/4x + 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• A. 50 min
• B. 80 min
• C. 45 min
• D. 60 min

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSF.IF.B.4