Question

How many zeros does this function have?
y = 5x2 + 10x - 3

Answer 1

\[\large{y = 5x^2 + 10 x - 3}\]

Now number of zeroes will depend on the discriminant of the quadratic expression

Answer 2

Discriminant = D = \(\large{b^2 - 4ac}\)
For : \(\large{ax^2 + bx + c = 0 }\)

If D = 0 - Only one real zero

If D < 0 - No real zero

If D > 0 - 2 real zeroes

Answer 3

Here,
a = 5
b = 10
c = -3