Question

How do u find the slope of (6,-10), (-15,15)

Answer 1

`m = (y_(2) - y_(1))/(x_(2)- x_(1)) = (15 - (-10))/(-15 - 6) = (15 + 10)/(-21) = (25)/(-21) = -1(4)/(21)`

y - y₁ = m(x - x₁)
y - (-10) = -1⁴/₂₁(x - 6)
y + 10 = -1⁴/₂₁(x) + 1⁴/₂₁(6)
y + 10 = -1⁴/₂₁x + 7¹/₇
- 10 - 10
y = -1⁴/₂₁x - 3¹/₇