sums/test 2

Grade 8Algebraic ExpressionsCCSS: 8.EE.C.7a

Solve:
8(9+)-6(y-12)=0

1. y=0
2. y=-72
3. y=-12
4. y=24

Grade 8Linear EquationsCCSS: 8.EE.C.7

At what point does the line given by the following equation cross the y-axis?
y=-6x+2

1. (0,3)
2. (0,2)
3. (0,4)
4. (0,-6)

Grade 8Inequalities

Harry owes his father $80. He makes $45 cutting grass on Saturday morning and has another grass cutting job on Saturday afternoon. Which inequality shows how much Harry will need to earn on Saturday afternoon to have enough to pay his father back?

1. 45+x>80
2. 45+x≥80
3. 45+x<80
4. 45+x≤80

Grade 8Algebraic Expressions

Solve for x
3x+5+6x−7=25

1. x = 25
2. x = 3
3. x = 13
4. x = 30

Grade 8Proportional Relationships

Equivalent Fractions:

46=x3

1. 6
2. 2
3. 4

Grade 8Linear EquationsCCSS: 8.EE.C.7b

Solve the equation 5x-10y=-40 for y

1. y=-2x-4
2. y=−12x+4
3. y=12x+4
4. y=2x+4

Grade 8TrigonometryCCSS: 8.G.B.7

What is the missing length of a triangle given that one leg is 5 cm long and the other leg is 12 cm long?

1. 13 cm
2. 10 cm
3. 5 cm
4. 169 cm
5. 34 cm

Grade 8Linear EquationsCCSS: 8.F.B.4, 8.F.B.5

In a new model of car that Ford is developing, they are comparing the mileage to car earns to the engine power. What they find is as the mileage decreases the engine power increases. What type of correlation is represented in this scenario?

1. Positive
2. Negative
3. Constant
4. None

Grade 8Algebraic ExpressionsCCSS: 8.EE.C.7a

Solve the equation:
-18+x=-3

1. -15
2. 15
3. 21
4. -21

Grade 8Collecting and Interpreting DataCCSS: 8.SP.A.4

Jesse grew 1.5 cm this year while Shaniqua grew 2.5 cm. This is an example of

1. Correlation
2. Causation
3. Unrelated events
4. a and b

Grade 8Collecting and Interpreting DataCCSS: 8.SP.A.4

Jeremy's math grade went up this week but Sara's language arts grade went down. This is an example of

1. Correlation
2. Causation
3. Unrelated events
4. a and b

Grade 8Collecting and Interpreting DataCCSS: 8.SP.A.4

The amount of water that is given to a plant affects the rate at which it grows. This is an example of

1. Correlation
2. Causation
3. Unrelated events
4. a and b

Grade 8Points, Lines, and PlanesCCSS: 8.G.A.1b

A 175° angle is rotated 5° counter clockwise. The resulting angle is

1. 5°
2. 175°
3. 180°
4. 350°

Grade 8Points, Lines, and PlanesCCSS: 8.G.A.1b

A 135° angle is rotated 135° counter clockwise. The resulting angle is

1. 315°
2. 225°
3. 270°
4. 135°

Grade 8Polynomials and Rational Expressions

Multiply:
(4x-1)(3x+2)

1. 12x2+3x−2
2. 12x2−5x+1
3. 12x2+11x+2
4. 12x2+5x−2

Grade 8Algebraic ExpressionsCCSS: 8.EE.A.2

Solve:
5x+1−−−−−−√=4

1. 3
2. 1/5
3. -0.2
4. 1

Grade 8Proportional Relationships

A car and a truck left LaPoint at 1:15 p.m. traveling in opposite directions. If the driver of the car drove 55 miles per hour, and the truck averaged 50.5 miles per hour, how many miles apart will they be at 4:15 p.m.? (distance = rate x time)

1. 151.5
2. 165
3. 316.5
4. 415
5. 540

Grade 8Polynomials and Rational Expressions

What is the greatest common factor of the expression below?
24x5+36x3−18x2

1. 2x5
2. 18x2
3. 3x
4. 6x2

Grade 8Positive and Negative Numbers

Thomas climbed up a mountain to 12,000 feet above sea level on Saturday. The following week, he went to the Gulf of Mexico and went scuba diving. He dove to a depth of 30 feet below sea level. What range in feet did Thomas ascend and descend during that week?

1. 11,970 feet
2. 12,300 feet
3. 1,230 feet
4. 1,197 feet
5. 12,030 feet

Grade 8FunctionsCCSS: 8.EE.C.7a

Solve the following equation:
2(-3x+5)-12=9x-3(5x+4)

1. Infinitely Many solutions
2. x=1
3. x=0
4. No Solution