Question

Determine the number of real solutions for the following quadratic equation using the discriminate

Answer 1

Given equation:

`y=x^2-3x-4`
`a=1,b=-3,c=-4`

Discriminant:

`\begin{gathered} b^2-4ac \\ (-3)^2-4(1)(-4) \\ =9+16 \\ =25 \end{gathered}`

Number of real solutions:

Since the discriminant is > 0 (that is ,it is a positive value)