Math Unit 8.3 Test B

Front

What is the equation of a vertical line that passes through x = 1?

Back

x = 1

Front

If a truck can carry 1,000 pounds and each table weighs 50 lbs, how many chairs (10 lbs each) can it carry if it carries 20 tables?

Back

0 chairs

Front

What is the slope of the line represented by the equation y = 2x - 1?

Back

2

Front

What type of slope does a horizontal line have?

Back

Zero slope

Front

Write the equation of a line with a slope of 1/3 that passes through the y-intercept -2.

Back

y = 1/3x - 2

Front

What is the definition of slope in a linear equation?

Back

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

Front

How do you determine if a slope is positive, negative, or zero?

Back

A positive slope rises from left to right, a negative slope falls from left to right, and a zero slope is horizontal.

Front

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

Back

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

Front

What does it mean if a line has an undefined slope?

Back

An undefined slope indicates a vertical line where the x-coordinates are the same.

Front

If a line has a slope of -2, what does this indicate about the line's direction?

Back

The line falls from left to right.