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:

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

Let's first simplify the second equation. We can divide all terms by 3:

\[ 4x - y = 3 \]

Now we have a simpler system of linear equations:

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

Next, let's solve for \( y \) in the second equation:

\[ y = 4x - 3 \]

Now substitute \( y \) from the second equation into the first equation:

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

Distributing the -2:

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

Combine like terms:

\[ -4x + 6 = 2 \]

Subtract 6 from both sides:

\[ -4x = -4 \]

Dividing both sides by -4 gives:

\[ x = 1 \]

Now that we have \( x \), we can substitute it back into the equation for \( y \):

\[ y = 4(1) - 3 = 4 - 3 = 1 \]

Therefore, the point where the two lines intersect is:

\[ (1, 1) \]

Thus, the complete sentence would read:

When graphed, the two linear equations intersect at the point \( (1, 1) \).