Aaron S. answered 01/14/21
Engineer Excited to Teach Algebra
Hi Quaronna,
To find the slope intercept form of the line that passes through (6,-1) and (3,-7), we need to first find the slope of the line. This equation is m=(y2-y1)/(x2-x1). We can plug in our data points to get m=(-7-(-1))/(3-6) and solve for m. We get 2 as our m. The first part of our slope intercept form is solved. y=2x+b.
Now we need to solve for b. To do this, we can plug in a data point to our equation and solve for b. Let's use the (6,-1) data point. -1=2(6)+b. When we solve for b, we get -13.
Our ultimate equation in slope intercept form is y=2x-13. We can validate this by plugging in one of the data points to get the pair.
Let's use the (3,-7) point. y=2(3)-13=6-13=-7. That's the data point!
The ultimate equation in slope intercept form is y=2x-13.