menyinggung sumbu x di (1.0) --> y = a(x-1)² melalui (x,y)= (0,4) ---> 4 = a(0-1)² a = 4 fungsi kuadrat y = 4(x-1)² y = 4(x² - 2x + 1) y = 4x² - 8x + 4
n0.9 fungsi memotong sumbu x di (5,0) dan (-1,0) y = a(x -5)(x + 1) melalui (x,y) = (-3, - 8) --> -8 = a(-3-5)(-3+1) -8 = a(-8)(-2) a= - 1/2 fungsi kuadrat y = -1/2(x-5)(x+1) y = - 1/2 (x²+x - 5x - 5)
menyinggung sumbu x di (1.0) --> y = a(x-1)²
melalui (x,y)= (0,4) ---> 4 = a(0-1)²
a = 4
fungsi kuadrat y = 4(x-1)²
y = 4(x² - 2x + 1)
y = 4x² - 8x + 4
n0.9
fungsi memotong sumbu x di (5,0) dan (-1,0)
y = a(x -5)(x + 1)
melalui (x,y) = (-3, - 8) -->
-8 = a(-3-5)(-3+1)
-8 = a(-8)(-2)
a= - 1/2
fungsi kuadrat y = -1/2(x-5)(x+1)
y = - 1/2 (x²+x - 5x - 5)