Essential Math Facts All 8th Grade Students Should Know

Front

What are positive and negative whole numbers and zero?

Back

Integer

Front

A ______ can be written as a fraction a/b. Perfect Squares.

Back

Rational Number

Front

What are non-repeating (random), non-terminating decimals (e.g., π, √19)?

Back

Irrational Number

Front

The steepness of a line is called ______.

Back

Slope

Front

The formula for slope is ______.

Back

(y2 - y1) / (x2 - x1)

Front

The point where a line crosses the y-axis (when x=0) is called the ______.

Back

Y-intercept

Front

The point where a line crosses the x-axis (when y=0) is called the ______.

Back

X-intercept

Front

The equation whose graph is a straight line (y=mx+b) is called the ______.

Back

Slope Intercept Form

Front

The formula a²+b²=c² (right triangles) is known as the ______.

Back

Pythagorean Theorem

Front

The two shorter sides of a right triangle (a and b) are called the ______.

Back

Legs