Write an equation in standard form for each of the following conic sections. a. A parabola with vertex (1, 2) and directrix y = -2

b. A circle with center (2, 3) passing through the point (-3, 5)

c. A parabola with focus (-1,0) and directrix x = 1.

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

answer: i don't understand it

step-by-step explanation: sorry

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.