Question

what is the work for the distancr between two parallel line: y=2x and y=2x+3 : square root of 18

Answer 1

well you now a point on the line

y = 2x + 3.... the y-intercept (0, 3)

so you can use the perpendicular distance from a line to a point formula

\[d = \frac{|ax_{1} + by_{1} + c|}{\sqrt{a^2 + b^2}}\]

so rewrite y = 2x in standard form

and use the point (0, 3)