Question

What is an equation for the line that passes through the coordinates (4,5) and (8, 3)?
Please help.... SIF from two points

Answer 1

-1/2x+7. Because x=(y2-y1)/(x2-x1)

Answer 2

The equation to find the slope of a line is y2 - y1 / x2 - x1

So, what you do is take the y coordinate in your first point, which in this case is 5, and subtract it from your y coordinate in the second point, which is 3.

3 - 5 = -2
-2 / x2 - x1

Now take the x coordinate in your first point, which in this case is 4, and subtract it from the x coordinate in your second point, which is 8.

8 - 4 = 4

Now you're left with -2 / 4, which is the equation for the line that passes through the points (4,5) and (8,3)

Hope this helps!!