8th Grade Math End of Year Review 1

Classify

100

Classify this number:

-15

Real, Rational, Integer

200

Classify this number:

4.16

Real, Rational

300

Classify this number:

0

Real, Rational, Integer, Whole

400

Classify this polynomial by degree:

3x²-20

Quadratic

500

Classify this polynomial by degree AND number of terms:

-5x³

Cubic, monomial

Simplify

100

Simplify:

5+(7-4)²

14

200

Convert to improper fraction:

2 4/5

14/5

300

Simplify:

-3(4x-10)

-12x+30

400

Convert fraction to decimal.

103/999

0.103 (repeating)

500

Simplify.  Then combine like terms.

2(x-6) - 3(x+1)

-x-15

Slope

100

What is the slope of this line?

y = -9x +4

m = -9

200

What is the slope of this line?

y = -5

m = 0

300

What is the slope of this line?

x = 9

slope is undefined

400

What is the slope of this line?

3y + 4 = -9x +10

m = -3

500

What is the slope?

5x + 3y = 6

m = -5/3

Equations

100

Solve for x.

2x-1 = -9

x = -4

200

Solve for y:

10 - 4y = 6

y = 1

300

Solve for x.

26 = 2(2-x)

x = -11

400

Solve for x.

-2x + 1 = 2(-x+2)

No solution

500

Solve for x.

(-3/2) x - 4 = 11

x = -10

Misc

100

Are these lines intersecting, parallel or coincident?

y = 1/2 x - 1

y = 2x +20

Intersecting

200

Are these lines intersecting, parallel or coincident?

y = -3x + 1

y = -3x - 4

Parallel

300

What is the point of intersection of this system?

y = -2x + 5

y = -2x - 9

No solution

400

What is the y-intercept of this line?

3y = -9x -12

-4

500

Solve the system algebraically.

y = 2x - 1

y = 3x +2

(-3, -7)