Question

Tentukan persamaan garia yg melalui titik B(4,-5)dan bergradien 1
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2

Answer 1

Verified answer

(4 , -5) => (x₁ , y₁)
m = 1

Persamaan
y - y₁ = m(x - x₁)
y + 5 = x - 4
x - y - 9 = 0

Answer 2

Jika gradien = m, maka :
y - y1 = m(x - x1)
y - (-5) = 1(x - 4)
y + 5 = x - 4
-x + y = -4 - 5
-x + y = -9
-x + y + 9 = 0