Question

Which of the quadratics has a graph with only one x-intercept?
A)
y = 2x2 + 4
B)
y = x2 - 8x + 16
C)
y = 2x2 - 8x + 20
D)
y = -2(x -1)2 + 2

Answer 1

Quadratic equations are of the form \[ax^2 + bx + c\]
Use the discriminant: \[b^2-4ac\]
If the discriminant is positive, the specific quadratic has two intercepts.
If the discriminant is negative, the specific quadratic is imaginary (no intercepts).
If the discriminant is equal to 0, there is one intercept.

Answer 2

dont do his homework for him

Answer 3

browsing, he makes no effort. he just wants answer

Answer 4

he wants free lunch

Answer 5

i dont fluttering get it. and im not a guy

Answer 6

jerk