PDA

View Full Version : y-intercept of a graph



Max
10-29-2013, 07:28 PM
Which of the following is the y-intercept of the graph 2x-4y+24=0?


(A) (0,24)

(B) (0,6)

(C) (0,12)

(D) (0,-12)

(E) (0,-6)

Thanks!

Lucas
10-29-2013, 07:28 PM
In order to find the point of intersection of this line with the y-axis we have to plug in x=0 in the equation of the line.
So, 2(0)-4y+24=0 \Rightarrow 24=4y \Rightarrow y=6

Therefore the correct answer is (B).

Max
10-29-2013, 07:28 PM
Thank you Lucas!