SOLUTION: Find the slope if it exists y=-3x+7

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Question 399107: Find the slope if it exists
y=-3x+7
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

y=-3x%2B7......this is an equation in slope-intercept form and (as
you can see) a slope is -3


if you want to find it, you need two points to find a slope; let x=0 and
x=2, and find y for these values of x
y=-3x%2B7.....if x=0
y=-3%2A0%2B7=7....y=7...so, we have one point: (0,7)
y=-3x%2B7.....if x=2
y=-3%2A2%2B7=-6%2B7=1....y=1...so, we have another point: (2,1)
now we can find a slope m
Solved by pluggable solver: Finding the slope


Slope of the line through the points (0, 7) and (2, 1)



Answer: Slope is m+=+-3