Question 7 solve the following system of equations by using the elimination method. -4x – 2y = -12 4x + 8y = -24 (5, 3) (-6, -6) (3, 1) (6, -6)

To solve this problem you must apply the proccedure shown below:

1. You have the following system of equation:

2. As you can see, you can cancel out the variable , because it has equal coefficient with different signs at both equations. Then, if you add both equations, you obtain:

3. Let's substitute the value obtained into the second equation to calculate the other variable:

The answer is: (6,-6).

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )