Math 8 Semester 1 Exam Review

Front

What is the formula to calculate the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Front

What does it mean for a relation to be a function?

Back

A relation is a function if each input (x-value) has exactly one output (y-value).

Front

Convert 416,000,000 to scientific notation.

Back

4.16 x 10^8

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for the function.

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for the function.

Front

Solve the equation: 12x - 15 = 3(2x + 3)

Back

x = 4

Front

What is the difference between a function and a relation?

Back

A function is a specific type of relation where each input has one output.

Front

How do you identify if a table represents a function?

Back

Check for repeated x-values; if there are any, it is not a function.

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are constants.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.