There are no real solutions for a quadratic equation when the discriminant is:
a. zero b. negative c. positive d. less than five e. greater than eight

Question

There are no real solutions for a quadratic equation when the discriminant is:
a. zero b. negative c. positive d. less than five e. greater than eight

unklerhaukus · Answer

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anonymous · Answer

@UnkleRhaukus what does this mean?

unklerhaukus · Answer

i have draw a quadratic equation (a parabola) with no real solutions- (it dosen't cut the x-axis)

anonymous · Answer

is the answer b ?

unklerhaukus · Answer

consider the quadratic formula
$$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$
the quadratic formula is used to find the solution(s) to $$ax^2+bx+c=0$$
the solutions are y=0 when x= a solution


the discriminate is   $\Delta={b^2-4ac}$

what are three options for the discriminate that correspond to different types of solution

anonymous · Answer

i have no idea

unklerhaukus · Answer

$$\left\{\begin{array} \\Delta>0\ \Delta=0\ \Delta<0\end{array}\right.$$, see what happens if to the quadratic formula in each of these cases