Question

( 4,?)Is on the line y=2×+3. find the other half of the coordinate

Answer 1

You do y=2x(4)+3
that equals 11
so the coordinate is (4,11)

Answer 2

(4, ?). Let ? = b

(4, b) on line y = 2x + 3

x =4, y = b.

y = 2x + 3

b = 2*4 + 3

b = 8 + 3

b = 11.

The other half of coordinate is 11.