Equation of a Line Worksheet
Grade 8 math worksheet on understanding and writing equations of lines, including slope-intercept form and graphing linear equations.
Includes
Standards
Topics
Equation of a Line
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for full credit.
1. What does 'm' represent in the slope-intercept form y = mx + b?
y-intercept
x-intercept
slope
origin
2. Which of the following equations represents a line with a negative slope?
y = 3x + 2
y = -2x + 5
y = x + 1
y = 4x - 0
3. The is the point where the line crosses the y-axis.
4. A horizontal line has a slope of .
5. Graph the equation y = 2x - 3 on the coordinate plane.
6. Write the equation of a line that passes through the points (1, 5) and (3, 9).
7. The slope of a vertical line is undefined.
True
False
8. In the equation y = -x + 4, the y-intercept is -4.
True
False
Match each description with the correct term.
9. Rise over run
a. y-intercept
10. Where the line crosses the y-axis
b. slope
11. y = mx + b
c. slope-intercept form
12. A taxi service charges a flat fee of $3.00 plus $1.50 per mile. Write an equation to represent the total cost (C) for a ride of (m) miles. Then, calculate the cost for a 10-mile ride.
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