JAMB - Mathematics (1995 - No. 31)
Two variables x and y are such that \(\frac{dy}{dx}\) = 4x - 3 and y = 5 when x = 2. Find y in terms of x
2x2 - 3x + 5
2x2 - 3x + 3
2x2 - 3x
4
Wyjaśnienie
∫dy = ∫(4x - 3)dx, y = 2x2 - 3x + C
when y = 5, x = 2, C = 3
y = 2x2 - 3x + 3
when y = 5, x = 2, C = 3
y = 2x2 - 3x + 3