If the directrix of a parabola is the horizontal line y = 3, what is true of the parabola?
a)...
Mathematics, 18.10.2019 19:30 reetajmahfouz3816
If the directrix of a parabola is the horizontal line y = 3, what is true of the parabola?
a)the focus is at (0, 3), and the equation for the parabola is y2 = 12x.
b)the focus is at (0, –3), and the equation for the parabola is x2 = –12y.
c)the focus is at (3, 0), and the equation for the parabola is x2 = 12y.
d)the focus is at (–3, 0), and the equation for the parabola is y2 = –12x.
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 20:30
Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points
Answers: 1
Mathematics, 21.06.2019 21:30
Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.
Answers: 2
Mathematics, 21.06.2019 22:40
Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?
Answers: 2
Mathematics, 21.06.2019 23:10
Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?
Answers: 3
You know the right answer?
Questions
Chemistry, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Mathematics, 05.06.2020 22:06
Social Studies, 05.06.2020 22:06
Spanish, 05.06.2020 22:06
