8th Grade Math - Unit 7

Squares and Square Roots

100

Solve 4².

16.00

200

Solve 6².

36.00

300

What is the square root of 81?

9.00

400

What is the square root of 144?

12.00

500

What is the square root of 2?

1.41421356237

Cubes and Cube Roots

100

Solve 3³.

27.00

200

What is the cube root of 8

2.00

300

Solve 4³.

64.00

400

What is the cube root of 125?

5.00

500

Solve 78³.

474,552.00

Solving Equations

100

Solve 5*4³.

320.

200

Solve 5+(3³).

32.00

300

Solve 5(9-2)³.

1715.00

400

Solve 3.5(14+4³)+45.

244.50

500

Solve 2[5(9+3²)]+3³.

443.00

Linear Equations

100

Find where these intersect:

Y=2X-2

Y=3x-1

(-1,-4)

200

Find where these intersect:

Y=4X-1

Y=2X+1

(1,3)

300

Find where these intersect:

Y=1/4X-2

Y=1/3X+1

(-36,-11)

400

Find where these lines intersect:

Y=2/3X+1

Y=4X-1

(0.6,1.4)

500

Find where these intersect:

Y=6X+4

Y=3/2-4

INfinite solutions. (same line).

Linear Functions

100

Tell whether this is linear:

Y=X/2+2

Linear

200

Tell whether this is linear:

Y=2/X

Nonlinear.

300

Tell whether this is linear:

4/X

Nonlinear.

400

Y=4X+2²

(Tell whether this is linear or not)

Linear

500

Tell whether this is linear:

Y=X²-5

No.