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A line passes through the origin and the point \((1\frac{1}{...

A line passes through the origin and the point (114,212). Find the y-coordinate of the line when x = 4.

A.

2

B.

4

C.

6

D.

8

Correct answer is D

The gradient of the equation = y1y0x1x0=520540

= 5254=2

The line passes through the origin, therefore the equation of the line is y = mx

y=2x

When x = 4, y = 2 x 4 = 8.