find the y-intercept of the line by substituting 0 in for x and solving for y. y=2x +12

To find the y-intercept of the line y=2x +12, you substitute 0 in for x and solve for y.

Step 1: Substitute 0 in for x in the equation y=2x +12. This gives you y=2(0) +12.

Step 2: Simplify the equation. 2 times 0 is 0, so the equation becomes y=0 +12.

Step 3: Simplify further. 0 + 12 is 12, so the equation becomes y=12.

Therefore, the y-intercept of the line y=2x +12 is 12.