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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
-4 and -3
B
-5 and -4
C
-6 and -5
D
-7 and -6
3) A square box lid has an area of 40 sq in. What is the best estimate of the length of one side?
A
6.3 inches
B
7 inches
C
6.5 inches
D
6 inches
4) In the equation y=x+1, what is teh y intercept?
A
1
B
x
C
y
D
=
5) In the equation y=3x-3, what is the slope?
A
x
B
3
C
-3x
D
-3
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
$0.70
B
$0.50
C
$9
D
$0.14
7) In the equation h=-3t+18, is the slope negative or positive?
A
positive
B
negative
8) Which is a linear equation?
A
y=2-3x^3
B
y=3-2x
C
y=-7x^2
D
y=-7x^3
9) Find the length of the hypotenuse is the two legs are 3 and 7
A
3.16
B
7.62
C
10.00
D
9.49
10) Find the missing leg if one leg is 6 ft and the hypotenuse is 10 ft.
A
9 ft
B
7 ft
C
8 ft
D
10 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
positive
B
no correlation
C
negative
13) What is a potential benefit to making financially responsible decisions?
A
less money in your savings
B
Having a high credit score
C
not being able to finance a car
D
being charged a higher credit interest rate
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
7.1
D
7.4
15) Is the sqrt of 9 rational or irrational?
A
irrational
B
rational
16) Express the fraction 3/16 as a decimal
A
.1875
B
.161616161616
C
.17777
D
.9
17) Is .02002000200002... rational or irrational?
A
rational
B
irrational
18) What kind of number is sqrt (2)?
A
irrational
B
rational
19) Which of the following is an irrational number?
A
-1/3
B
sqrt 81
C
sqrt 21
D
2.59
20) On the graphing calculator, how do find the square root of a number
A
Press ctrl then =
B
press ctrl then x^2
C
press ctrl then enter
D
press ctrl then +
*select an answer for all questions
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