What is the slope of the line through (-1,-7) and (3,9)?

2 Answers
Apr 5, 2018

The slope is 44.

Explanation:

We can use the formula for calculating slope on our graph, the formula is the vertical difference over the horizontal difference of the graph. In other words, the formula is

"slope" = (y_2-y_1)/(x_2-x_1)slope=y2y1x2x1

So in our case the

  • y_2=9y2=9
  • y_1=-7y1=7
  • x_2=3x2=3
  • x_1=-1x1=1

So if we substitute we can get our equation like this

"slope" = (9- (-7))/(3- (-1)) =(16)/(4) =4 slope=9(7)3(1)=164=4

Hope this helps!

Apr 5, 2018

44

Explanation:

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The slope (or gradient, mm) is given by the difference in the yy ordinates divided by the difference in the xx ordinates as follows:

m=(9--7)/(3--1)m=9731

m=16/4m=164

m=4m=4