6 gives largest output and 12.7 or -.4 gives the smallest
0.14
There is supposed to be a bar on the top like a line but I couldn’t put it here so u can put it urself if ur writing it on paper
Answer: 
Step-by-step explanation:
Let the given parabolic mirror opens upwards and vertex=(0,0)
Focus point of the parabolic mirror is located 2 inches from the vertex of the mirror. ∴ p=2
Since, the parabola opens upward, then the equation of the parabola is of the form 
Substitute the value of p=2 in this, we get the equation of the parabolic mirror

Hence, the equation of the parabola that models the cross section of the mirror is 