Math Semester Exam

Front

What is the slope of the line represented by the equation x = -4?

Back

undefined

Front

What is the equation to show Sid's revenue (y) after selling x phones if he earns $2 per phone?

Back

y = 2x

Front

What is the slope of the line represented by the equation y = -1x + 8?

Back

negative

Front

How much revenue does Rob get for each whistle if the equation is y = 2x?

Back

$2 per whistle.

Front

What is the slope of the line represented by the equation y = 4x + 10?

Back

positive

Front

Define slope in the context of a linear equation.

Back

Slope is a measure of the steepness of a line, represented as the ratio of the rise (change in y) to the run (change in x).

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that as x increases, y also increases.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that as x increases, y decreases.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates a vertical line where x is constant.

Front

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

Back

The y-intercept is the value of y when x = 0, represented by b.