Problema Solution
) Determine whether the ordered pair (x, y) given is a solution to the given quadratic equation,
(2,-1), x2 + y2- 6x + 8y = -15
Answer provided by our tutors
the ordered pair (x, y) is (2, -1) this means we have to check the equation
x^2 + y^2 - 6x + 8y = -15 for x=2 and y = -1
that is
2^2 + (-1)^2 - 6*2 + 8(-1) = 4 + 1 - 12 - 8 = - 15
thus the ordered pair (2, -1) is a solution to the given quadratic equation.