Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). A parabola is given by the equation y=x2 + 4x + 4

The vertex of the parabola is (blank)The focus of the parabola is(blank)

The directrix of the parabola is given by the equation y=(blank)

Note: Separate coordinates inside parentheses with a comma. PLEASE HELP!!

Vertex: (-2, 0)

Focus: (-2, 1/4)

Directrix: y = -1/(4a)

Step-by-step explanation:

Given that a parabola has a general form of:

The vertex is at:

The focus falls on the symmetry axis (x=h) of the parabola at:

The directrix is a straight line described by:

If we are given the parabola:

Then:

The vertex of the parabola is (-2, 0)

The focus of the parabola is  (-2, 1/4)

The directrix of the parabola is given by the equation y = -1/(4a)

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

80

step-by-step explanation: