Grade 8 · Math

8th grade Graph a line from y = mx + b, and make a table of values worksheet

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Graph a line from y = mx + b, and make a table of values

Grade 8 Math Worksheet

NameDate

Circle the best answer, or write your answer on the line.

Ari fills a table of values for y = -3x + 4. What is y when x = 5?
Esme fills a table of values for y = -4x − 1. What is y when x = -2?
Jun fills a table of values for y = 0.5x + 6. What is y when x = 8?
Kira graphs y = -2x + 5, starting where the line meets the y-axis, then moving 3 across along the line. Which point does Kira reach?
Luz graphs y = -x + 2, starting where the line meets the y-axis, then moving 4 across along the line. Which point does Luz reach?
Milo graphs y = 3x − 4, starting where the line meets the y-axis, then moving 3 across along the line. Which point does Milo reach?
7.
Noah checks points for the line y = -2x + 1. Which point is on the line?
- (-5, 3)
- (3, 7)
- (3, -5)
- (3, -6)
Bo's line crosses the y-axis at 6 and rises 2 for each 1 to the right. What is y on the line at x = 7?
Esme's line crosses the y-axis at -3 and falls 4 for each 1 to the right. What is y on the line at x = 2?
Jun's line crosses the y-axis at 10 and falls 2 for each 1 to the right. What is y on the line at x = 6?

Graph a line from y = mx + b, and make a table of values. Every version has 10 questions, and the answer key prints on the second page.

I can fill a table of values from y = mx + b, including negative and fraction slopes.
I can start at (0, b) and step along the line to a new point: across 1, change y by m (or across the bottom of a fraction slope and up its top).
I can check whether a point is on a line, and find the plotted point that is wrong.

Standard: 8.F.A.3 (partial)

table of values: Rows of x and y that the rule makes.

point (x, y): A row drawn on the grid: across x, then up (or down) y.

y-intercept: The point (0, b) where the line meets the y-axis.

slope step: Go 1 to the right and change y by m.

whole-number point: A grid point; for y = 2x ÷ 3 + 2 the next one is 3 to the right.

Your child multiplied by the slope but did not add the starting value. In y = 3x + 2, ask: what is y when x is 0?

Your child added the slope to x instead of multiplying.

Your child used the slope as the start and the start as the slope. In y = 3x + 2, ask: which number goes with x?

Ask: what does 3x mean?

What is the most common mistake with graph a line from y = mx + b, and make a table of values?

Your child multiplied by the slope but did not add the starting value. In y = 3x + 2, ask: what is y when x is 0?

Are these 8th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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