End of Year- Math 8 Review

Front

What type of association does a graph with a downward slope have?

Back

Negative association: As one variable increases, the other decreases.

Front

How many students speak a foreign language if the total is 80?

Back

80 students speak a foreign language.

Front

Find the slope between the points (-3, 3) and (7, 6).

Back

Slope = 3/10.

Front

What is the length of the hypotenuse in a right triangle with legs of length 6 and 8?

Back

Hypotenuse = 10 (using Pythagorean theorem).

Front

What is the solution of the equation 4m + 2 = -3m + 16?

Back

m = 2.

Front

What does a positive association in a graph indicate?

Back

Positive association: As one variable increases, the other also increases.

Front

What is the formula for calculating the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

How do you isolate a variable in an equation?

Back

Perform inverse operations to get the variable alone on one side.