Anyone please help I need the exact answer! What is the cosine equation of the function shown? Enter your answer by filling in the boxes. Enter any phase shift as its smallest multiple from the fundamental period.

The answer to your question is  5(cosx + π/4) + 4

Step-by-step explanation:

General equation of trigonometric functions

                          f(x) = A(cos bx + c) + d

A = amplitude

b = period

c = change of phase

d = vertical change

Process

1.- Calculate amplitude

From the lowest to the highest point the function measures 10 units, but A is 10/2 then A = 5.

2.- Calculate period, the cosine graph goes from 0 to 2π. Period does not change so b = 1.

3.- Change of phase, the graph must start in (0, 1) but this graphs starts in (-π/4, 9) so c = π/4.

4.- Calculate the vertical displacement , it moved upward 4 units, so d = +4

5.- The equation is  5(cosx + π/4) + 4

6.- See my graph below

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3