Ch5B test

Front

What is the parent function of the family of linear functions?

Back

y = x

Front

What are the slopes of perpendicular lines?

Back

Negative reciprocals.

Front

What is the value of y at the x-intercept?

Back

Zero (0)

Front

Which line is parallel to the line y = 7?

Back

y = -1

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.

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 it mean for two lines to be parallel?

Back

They have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Their slopes are negative reciprocals of each other.

Front

What is the y-intercept of the line represented by the equation y = 3x + 4?

Back

4

Front

How can you determine if a point (x, y) lies on the line y = mx + b?

Back

Substitute x into the equation and see if the resulting y equals the y-coordinate of the point.