Question

Use the points (1, -3) and (5, 9) for the following problems. a. Determine the slope between the two points above using the slope formula. Show all work.
b. Use the slope from part (a) and one point from above to write the equation in point-slope form.

Answer 1

Slope =3

process--

$\frac{9- (-3)}{5-1}=\frac{12}{4}$ =3

Point-slope form is 3x-y-6=0 (using the first set of points, (1,-3) )

process--

y-9=3(x-5)

y-9=3x-15

y=3x-15+9

y=3x-6

3x-y-6=0