Question

Consider the quadratic function f(x) = 2x2 – 8x – 10.

Answer 1

Answer:

The discriminant is is 144

Step-by-step explanation:

Step one

Given the expression

$f(x) = 2x^2- 8x - 10.$

we can solve for the The discriminant using the expression

$b^2 - 4ac$

Step two

from the given expression

the second term b=-8

the first term a= 2 and

the constant term c=-10

Step three

substituting all the terms into the expression $b^2 - 4ac$ we have

$b^2 - 4ac = (-8)^2 - (4)(2)(-10) =64- (-80)= 64+80= 144$