What is the slope for a line that passes through the points (3,7) and (-5,9)

Answer 1

The underlying formula that you want to use here is

m = (y2 - y1) / (x2 - x1)

for this set of points that becomes

m = (9 - 7) / (-5 - 3) = 2 / -8 = -1/4

Answer 2

m = (y₂ - y₁) / (x₂ - x₁)

x₁ = 3

y₁ = 7

x₂ = -5

y₂ = 9

Plug in the numbers and evaluate.