Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.

a. y = one divided by twenty eightx2
b. x = one divided by twenty eighty2
c. -28y = x2
d. y2 = 14x

Answer this question only if you know the answer! 30 points and

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Consider the diagram. lines e and c can be described as