Math 8 Review #1

Which of the following expressions is

5(x − 3) +12 in simplest form?

• 5x - 27

• 5x - 3

• 5x + 9

• 5x - 3 + 12

What is the solution of the equation below?

17 = 3x - 4

• x = 4.3

• x = 7

• x = 39

• x = 63

What is the solution of the equation below?

4m + 2 = -3m + 16

• m = 1.5

• m = 2

• m = 14

• m = 18

A linear equation has INFINITELY MANY solutions when both sides of the equation are equivalent.

• True

• False

Find the slope of the line that passes through:
(-3, -4) and (7, 6)

• 0
• Undefined
• -1
• 1

Find the slope of the line that connects the points (2, -3) and (5, 6)

• 3
• 1/3
• 1
• -1

Solve the equation
4x+60=400

• 85
• 115
• 1360
• 40

How would you write 4.3756 x 10⁴ in standard form?

• 437,560,000
• 0.00043756
• 43,756
• 4,3756

How would you write -5.6 x 10^-3 in standard form?

• 0.0056
• -5,600
• 0.00056
• -0.0056

Multiply:
(3.4 x 10⁵)(1.2 x 10^-3)

• 4.08 x 10^-8
• 4.8 x 10²
• 4.08 x 10²
• 4.08 x 10^-15