Algebra I Chp. 3 Practice Test

If (a, –7) is a solution to the equation 8a = –3b – 5, what is a? 

• –17 
• 2
• 8
• 17

Tags

CCSS.HSA.REI.B.3

Which equation is not a linear equation?

• 2x + 5y = 3 
• y = – 10 
• 5 = 3xy 
• y = x/7 + 4

Tags

CCSS.8.F.A.3

What is the slope of the line through (–4, –6) and (9, –6)?

• – 12/5
• – 5/12
• 0
• undefined

Tags

CCSS.8.EE.B.5

The amount a spring stretches varies directly as the weight of the object attached to it. If an 8-ounce weight stretches a spring 10 centimeters, how much weight
will stretch it 15 centimeters? 

• 16 oz 
• 6 oz 
• 10 oz 
• 12 oz

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

What is the slope of the line through (2, –8) and (4, 1)?

• – 2/9
• – 6/7
• – 7/6
• 9/2

Tags

CCSS.8.EE.B.5

PHOTOCOPIES Black and white copies cost $0.05 each, and color copies cost $0.49 each. The equation 0.05x + 0.49y = 5 represents the number of black and white copies x and color copies y that can be made with $5. If no color copies are made, how many black and white copies can be made with $5?

• 200 
• 100
• 25
• 10

Tags

CCSS.8.EE.C.7B

In 2005, MusicMart sold 14,550 CDs. In 2010, they sold 12,000 CDs. What is the rate of change in the number of CDs sold?

• –2550 per yr 
• –510 per yr 
• –425 per yr 
• –2400 per yr

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

If y varies directly as x and y = 5 when                 x = 8, find y when x = 9.

• 72/5
• 45/8
• 40/9
• 6

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

If y varies directly as x and y = 5 when                 x = 8, find y when x = 9.

• 72/5
• 45/8
• 40/9
• 6

Tags

CCSS.7.RP.A.2

The number of students seated in each row of an auditorium
form an arithmetic sequence, as shown in the table.
How many students are seated in Row 15?

• 46
• 58
• 59
• 195

Tags

CCSS.HSF.BF.A.2