Find the x- and y-intercept of the line.

2x + 3y = –18


x-intercept is 18; y-intercept is 18.

x-intercept is –9; y-intercept is –6.

x-intercept is 2; y-intercept is 3.

x-intercept is –6; y-intercept is –9.

1 answer

To find the x- and y-intercepts of the line given by the equation \(2x + 3y = -18\), we can follow these steps:

1. Finding the x-intercept:

The x-intercept occurs when \(y = 0\). So we substitute \(y = 0\) into the equation:

\[ 2x + 3(0) = -18 \]

This simplifies to:

\[ 2x = -18 \]

Dividing both sides by 2:

\[ x = -9 \]

So the x-intercept is \((-9, 0)\).

2. Finding the y-intercept:

The y-intercept occurs when \(x = 0\). So we substitute \(x = 0\) into the equation:

\[ 2(0) + 3y = -18 \]

This simplifies to:

\[ 3y = -18 \]

Dividing both sides by 3:

\[ y = -6 \]

So the y-intercept is \((0, -6)\).

Conclusion

The x-intercept is \(-9\) and the y-intercept is \(-6\).

Thus, the correct option is:

x-intercept is -9; y-intercept is -6.