Math 8 OST Review

Simplify the expression:
(a⁵)(a⁴)

• a²⁰
• a⁹
• a¹

  simplify    7^-2

• 1/7² = 1/49
• -49
• -14
• 1/14

We know that π (Pi) is approximately equal to 3.141592654... To which subset of the real numbers does π belong?

• Irrational Numbers

• Rational Numbers

• Integers

• Natural Numbers

How do you write the standard number 0.00095 in scientific notation?

• 9.5 x 10^-3

• 9.5 x 10^-5

• 9.5 x 10^-4

• 9.5 x 10^-6

If your scale factor is greater than 1, your new shape will be ______.

• Bigger
• Smaller
• The same size
• Rotated

When you dilate, you ______ x and y by a number.

• Multiply
• Add
• Subtract
• Divide

This is between which two integers?

• 12 and 13

• 13 and 14

• 45 and 46

• 91 and 92

What is the solution to this system?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

What letter represents the slope of a line in the equation y = mx + b?

• y
• m
• x
• b

Does this mapping diagram represent a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values paired with it.

• No, because each x-value has only one y-value paired with it.