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Final Exam 8th Grade Math Review
Test Description: 8th grade math review of concepts
Instructions: Answer all questions to get your test result.
1) What is 0.005007 written in scientific notation?
A
5.007 x 10^-3
B
5.007 x10^4
C
5.007 x 10^-4
D
5.007 x 10^3
2) Between what 2 integers does -sqrt(47) lie?
A
-6 and -5
B
-7 and -6
C
-4 and -3
D
-5 and -4
3) A square box lid has an area of 40 sq in. What is the best estimate of the length of one side?
A
7 inches
B
6.3 inches
C
6 inches
D
6.5 inches
4) In the equation y=x+1, what is teh y intercept?
A
x
B
1
C
y
D
=
5) In the equation y=3x-3, what is the slope?
A
3
B
-3
C
-3x
D
x
6) Miguel earns $9/ hr. His hourly wage will increase by 70 cents every 5 months. In a function that models his avg hourly wage in months, what is the slope?
A
$0.14
B
$0.70
C
$9
D
$0.50
7) In the equation h=-3t+18, is the slope negative or positive?
A
negative
B
positive
8) Which is a linear equation?
A
y=-7x^2
B
y=3-2x
C
y=-7x^3
D
y=2-3x^3
9) Find the length of the hypotenuse is the two legs are 3 and 7
A
10.00
B
9.49
C
7.62
D
3.16
10) Find the missing leg if one leg is 6 ft and the hypotenuse is 10 ft.
A
8 ft
B
7 ft
C
10 ft
D
9 ft
11) On question 57, what is true about the data?
A
no correlation
B
positive correlation
C
negative correlation
12) For question 59, what is true about the data?
A
negative
B
no correlation
C
positive
13) What is a potential benefit to making financially responsible decisions?
A
Having a high credit score
B
not being able to finance a car
C
being charged a higher credit interest rate
D
less money in your savings
14) Find the unknown leg if the hypotenuse is 28 and a leg is 2, round to the tenths7
A
7
B
7.5
C
7.4
D
7.1
15) Is the sqrt of 9 rational or irrational?
A
rational
B
irrational
16) Express the fraction 3/16 as a decimal
A
.9
B
.1875
C
.161616161616
D
.17777
17) Is .02002000200002... rational or irrational?
A
irrational
B
rational
18) What kind of number is sqrt (2)?
A
rational
B
irrational
19) Which of the following is an irrational number?
A
-1/3
B
sqrt 81
C
2.59
D
sqrt 21
20) On the graphing calculator, how do find the square root of a number
A
press ctrl then +
B
Press ctrl then =
C
press ctrl then x^2
D
press ctrl then enter
*select an answer for all questions
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