Math 8 VA SOL Review #1

Front

What is the slope in the equation y=mx + b?

Back

The slope (m) represents the rate of change of y with respect to x. In the equation y=2x + 3, the slope is 2.

Front

If m∠1 = 30°, what is m∠3 if they are corresponding angles?

Back

m∠3 = 30° because corresponding angles are equal.

Front

In the equation C = 9p + 2, what is the independent variable?

Back

The independent variable is p, the number of pizzas ordered.

Front

What is the dependent variable in the equation C = 9p + 2?

Back

The dependent variable is C, the total cost of pizzas.

Front

What does the y-intercept represent in the equation y = mx + b?

Back

The y-intercept (b) represents the value of y when x = 0.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What is the formula for the area of a triangle?

Back

The area (A) of a triangle is A = 1/2 * base * height.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often remembered as PEMDAS.

Front

Solve: 5 - 6^2 ÷ 4 - 3

Back

The answer is -7.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.