Question

How would you figure out what coordinate B is?​

Answer 1

(4,0)

Explanation:

coordinate B lies on the equation y + x = 4

y = 0 and x is unknown, so putting this in the equation:

y + x = 4

0 + x = 4

x = 4

Answer 2

B = (4, 0)

Explanation:

We are told that
`l_2` intersects the x-axis at B.

To determine where
`l_2` intersects the x-axis, set y to zero in the
`l_2` equation and solve for x:

`\implies 0+x=4`

`\implies x=4`

Therefore, B is (4, 0)