HELP! Which system of equations is equivalent to the system of equations shown?
x - 6y = 3
4x - 8y = 4

A) 5x - 14y = 7 and 2x - 12y = 6

B) 5x + 14y = 7 and 2x - 12y = -6

C) 5x - 14y = 7 and 2x + 12y = 6

D) 5x - 14y = 7 and 2x - 12y = -6

I need an explanation on how you got the answer please! (30 points)

i will do it what is ur user and pass

step-by-step explanation:

not sure srry man

(a) x intercepts: -6 and 2

you can obtain these by solving the equation 0=x^2 +4x-12 using your favorite quadratic formula. but it is easy to verify -6 and 2 indeed satisfy this equation.

(b) y intercept: -12

this is obtained by setting x=0: 0^2+4*0-12 = -12

(c) the minimum value is: -16 (this is the vertex)

you can get the vertex by rewriting the equation into the form:

there is no global or local maximum as the function goes to infinity, so only in the limit sense: +infinity.