3.
(07.04a)

if y = 5x − 4, which of the following sets represents possible inputs and outputs of the function represented as ordered pairs? (4 points)

{(0, −4), (2, 6), (4, 20)}

{(0, −4), (2, 6), (4, 16)}

{(0, 4), (2, 6), (4, 16)}

{(0, 4), (2, −6), (4, 20)}

B {(0,-4),(2,6)(,4,16)

Step-by-step explanation:

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0