Look at the two equations below.

4x-2y=-2
12x-3y=9




Select the answer choice that makes the sentence true.

When graphed, the two linear equations intersect at the point

.

1 answer

To find the point where the two equations intersect, we can solve the system of equations. The equations are:

  1. \(4x - 2y = -2\)
  2. \(12x - 3y = 9\)

We can simplify the second equation first by dividing all terms by 3:

\[ 4x - y = 3 \]

Now we have the two equations:

  1. \(4x - 2y = -2\)
  2. \(4x - y = 3\)

Next, we can solve for \(y\) in terms of \(x\) from the second equation:

\[ 4x - y = 3 \implies y = 4x - 3 \]

Now, we can substitute this expression for \(y\) back into the first equation:

\[ 4x - 2(4x - 3) = -2 \]

Simplifying this:

\[ 4x - 8x + 6 = -2 \] \[ -4x + 6 = -2 \] \[ -4x = -2 - 6 \] \[ -4x = -8 \] \[ x = 2 \]

Now, substitute \(x = 2\) back into the equation for \(y\):

\[ y = 4(2) - 3 = 8 - 3 = 5 \]

So the intersection point of the two equations is:

\((x, y) = (2, 5)\)

Therefore, when graphed, the two linear equations intersect at the point (2, 5).