Answer:
12
Step-by-step explanation:
Start at negative 8 on the number line than move to positive 20
Answer:
C. 3x=21
x=7
Step-by-step explanation:
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Using the Slope Equation
Pick two points on the line and determine their coordinates.
Determine the difference in y-coordinates of these two points (rise).
Determine the difference in x-coordinates for these two points (run).
Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).