Solve 0 = 4x2+12x+9. Select the equation that shows the correct
substitution of a, b, and c in the quadratic formula.
121 122 - 4(4309)
2(4)
X=
-12 + 122 +4(4)(9)
2(4)
o
-121 122 – 4(4)(9)
2(4)

The correct  substitution of a, b, and c in the quadratic formula is given by

The solutions of the given quadratic equation are real and equal.

Step-by-step explanation:

The given quadratic equation is

The coefficients a, b and c are as follow:

The quadratic formula is given by

The correct  substitution of a, b, and c in the quadratic formula is given by

Bonus:

The solution of this quadratic equation is given by

Therefore, the solutions of the given quadratic equation are real and equal.

6.5

step-by-step explanation:

you said it was in the question

~courtney

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.