Semester Exam Review

Front

What type of slope does a line with a downward trend have?

Back

Negative slope indicates that as the x-values increase, the y-values decrease.

Front

What is the slope of a line that decreases by 1 unit in y for every 2 units it increases in x?

Back

The slope is -1/2.

Front

Solve for x: 3(x - 2) = 18

Back

x = 8.

Front

Solve for x: 10x - 3 = 37

Back

x = 4.

Front

What is the y-intercept of a line if it crosses the y-axis at 5?

Back

The y-intercept is 5.

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that as the x-values increase, the y-values also increase.

Front

What is the formula for calculating the slope (m) between two points (x1, y1) and (x2, y2)?

Back

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

Front

What does it mean if a line has a slope of zero?

Back

A slope of zero means the line is horizontal and does not rise or fall.

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis.

Front

If a line has an undefined slope, what does that indicate?

Back

An undefined slope indicates a vertical line.