As the focus is at (0,5) it will be symmetrical about the y axis and will open upwards
General formula is x^2 = 4ay where a is the y coordinate of the focus
So its y = x^2/5*4
y = 1/20 x^2
The slope of the line = (2- -8) / (3 - - 5) = 10 / 8
= 5/4
y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line so here we have:-
y - 2 = 5/4(x - 3)
y = 5/4x - 15/4 + 2
y = 5/4 x - 7/4 is the answer
Per cent means for every hundred, so we just put 65 into a fraction with 100. However, percents are already out of 100. So for every 100 dumplings, 65 are vegetarian.
On graph paper, simple plot these two points. Then draw a line that hits both of these points. Then you will find that the line you drew never entered the first quadrant (the one on the top right side)