Show that the discriminant of (k+1)x²+4kx+2=0 defines a quadratic function of k.

Step-by-step explanation:

Given

For Discriminant of ax^2+bx+c=0

here

for real roots

so

is a form of Quadratic equation

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.