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Grade 8 practice
Slope from two points · 1–6
Find the slope of the line through each pair of points.
Linear functions from tables · 7–12
Write the rule y = mx + b. Give the rate of change and the initial value.
7.Write a rule for the table in the form y = mx + b. 8.Write a rule for the table in the form y = mx + b. 9.Write a rule for the table in the form y = mx + b. 10.Write a rule for the table in the form y = mx + b. 11.Write a rule for the table in the form y = mx + b. 12.Write a rule for the table in the form y = mx + b. Answer key — Grade 8 practice
Linear functions from tables
7.y = −7x − 3rate of change −7, initial value −3
8.y = 5x − 2rate of change 5, initial value −2
9.y = 6x + 7rate of change 6, initial value 7
10.y = −2x − 8rate of change −2, initial value −8
11.y = 9x + 3rate of change 9, initial value 3
12.y = x + 9rate of change 1, initial value 9
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