Please help:((( What is the correct standard form of the equation of the parabola?
Enter your answer below. Be sure to show each step of your work.

Step-by-step explanation:

From the figure, it is downward parabola of the form

The parabola has its vertex at

Distance between parabola vertex and its directrix is 1 unit.

So, the value of a is 1

Hence, the equation of parabola is  

f(x) = y

f(-3) = -5

step-by-step explanation:

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.