Question

Question 1

State the value of the discriminant for y = x2 – 8x + 10.
a) 10.2
b) 4.9
c) 104
d) 24

Answer 1

D = 24

Explanation:

The given quadratic equation is
`y=x^2-8x+10`.

It is required to find the value of the discriminant. The value of discriminant of any quadratic equation is given by :

`D=b^2-4ac`

Here, a = 1, b = -8 and c = 10

On plugging all the values, we get :

`D=(-8)^2-4* 1* 10\\\\D=24`

So, the value of discriminant for y is 24.