Algebra 1 Unit 4 Practice for Test

Front

What does the graph of y = 8 look like?

Back

A horizontal line.

Front

What does m = undefined indicate about a line?

Back

It represents a vertical line.

Front

Write the equation of the line in slope-intercept form: What is the slope in y = (-3/2)x + 4?

Back

The slope (m) is -3/2.

Front

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

Back

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

Front

In the equation y = mx + b, what does 'b' represent?

Back

The y-intercept.

Front

What is the definition of slope?

Back

Slope is the measure of the steepness of a line, calculated as the rise over run.

Front

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

Back

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

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line is increasing.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line is decreasing.

Front

What is the equation of a vertical line?

Back

The equation of a vertical line is x = a, where 'a' is a constant.