Nilai b dari persamaan y=x²+bx=2 dan y=4x-14

Jawab

y = x² + bx
y = 2
y = 4x -14

y = 2 –> y = 4x – 14
2 = 4x – 14
4x = 16
x= 4

y = 2
x = 4
y = x² + bx
2 = 4² + b(4)
2 = 16 + 4b
4b = -14
b = -14/4
b = -7/2
b = – 3,5