Question

Find the distance between of A(_4'_7) from the y axis

Answer 1

let the point on y-axis be B(0,-7),

by using distance formula:

AB=√(x2-x1)^2-(y2-y1)^2

AB=√ {0-(-4)}^2-{-7-(-7)}

AB=√ (0+4)^2-(-7+7)

AB=√16

AB=4 units

hope it helps......