Math 8 Midterm Review (Part I)

Front

Express 10,030,400,000 in scientific notation.

Back

1.00304 x 10^10

Front

Dilate Point B (3, -8) by a scale factor of 1/2. What are the new coordinates?

Back

(-1.5, -4)

Front

Classify the number -23.

Back

Real, Rational, Integer

Front

In a direct variation, if y=39 when x=3, what is y when x=2?

Back

26

Front

What is the square root of 81?

Back

9

Front

Define scientific notation.

Back

A way of expressing numbers as a product of a coefficient and a power of 10.

Front

What is a dilation in geometry?

Back

A transformation that alters the size of a figure but not its shape.

Front

What are rational numbers?

Back

Numbers that can be expressed as a fraction of two integers.

Front

What is the formula for direct variation?

Back

y = kx, where k is a constant.

Front

What is the square root of a number?

Back

A value that, when multiplied by itself, gives the original number.