Question

The equation y = ½x - 4 defines a straight line graph.At what point will the graph pass through the x-axis? what are the coordinates of the intersection with the x-axis ​

Answer 1

Explanation:

The x-axis refers to the horizontal line that goes from left to right on a coordinate plane, AKA y=0.

1. Set y=0 for the equation y = ½x - 4
2. 0 = ½x - 4
3. Bring over the negative 4 from the right side to the left by adding 4 to each side
4. 4 = ½x
5. Multiply both side by 2 to get rid of the ½ (Remember, we want x by itself)
6. 8 = x
7. Plug your new acquired x value (x = 8) to the original function ( y = ½x - 4)
8. y = ½(8) - 4
9. y = 4-4
10. y = 0
11. You're coordinate on where the line intersects the x-axis should be (8,0)