Chapter 5 Test

Front

What is the relationship shown on a scatter plot where as the temperature increases, the number of visitors increases?

Back

This indicates a positive correlation between temperature and number of visitors.

Front

Convert the equation to slope-intercept form: y = -x + 1

Back

y = x + 1

Front

Which equation represents a line with a negative slope?

Back

y = -5x - 3

Front

What are the x- and y-intercepts for the equation 5x - 3y = 15?

Back

(3, 0) and (0, -5)

Front

What does the line of best fit represent in a scatter plot?

Back

It represents the trend of the data points.

Front

Define slope in the context of a linear equation.

Back

Slope is the ratio of the rise (change in y) over the run (change in x) between two points on a line.

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

How do you find the y-intercept of a linear equation?

Back

Set x = 0 in the equation and solve for y.

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates a horizontal line.

Front

What does a vertical line represent in terms of slope?

Back

A vertical line has an undefined slope.