Rewrite the given quadratic equation in standard form: Kx 2 + 2x - 1 = 0
Discriminant = 4 - 4(K)(-1) = 4 + 4K
For the equation to have two real solutions, the discriminant has to be positive. Hence we need to solve the inequality 4 + 4K > 0.
The solution set to the above inequality is given by: K > -1 for which the given equation has two real solutions.
6x+8y=-32
8y=-32-6x
8y/8 -6x/8
y=-3/4x-4
1/2 2/4 3/6
0.5 0.50 0.500
