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Lesson: 3.4 Slope and Forms of Linear Equ...
Question 8 of 11 , Step 2 of 3
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Consider the following equation.
$- 3 x + y - 12 = 0$
Step 2 of 3: Plot the point on the line with the $x$ -coordinate $x = - 3$ .
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Final Answer: The point on the line with the x-coordinate $x = - 3$ is $(- 3, 3)$ . So, the y-coordinate is $3$ .

Steps

Step 1 ：Consider the following equation: $- 3 x + y - 12 = 0$ .

Step 2 ：We are asked to plot the point on the line with the x-coordinate $x = - 3$ .

Step 3 ：To find the y-coordinate of this point, we substitute $x = - 3$ into the equation and solve for y.

Step 4 ：This gives us the equation $y - 3 = 0$ .

Step 5 ：Solving for y, we find that $y = 3$ .

Step 6 ：Final Answer: The point on the line with the x-coordinate $x = - 3$ is $(- 3, 3)$ . So, the y-coordinate is $3$ .