Answer:

Step-by-step explanation:
The equation of a periodic function is in the form:
y = Asin(Bx + C) + D
Where A = amplitude, B = 2π / period, D = vertical shift, phase shift = -C / B.
Given that:
amplitude: 4, period 4 phase shift = vertical shift = -2
Hence:
A = amplitude = 4, B = 2π / period = 2π / 4 = π / 2, D = vertical shift = -2.
Phase shift = -C / B
C = -phase shift * B = - * -2 * π / 2 = π.
Therefore substituting gives:

Answer:
a. 22.5 km
b. 267.52 m
c. 95 m
d.
km
Step-by-step explanation:
a. You can convert from hectometers to kilometers, and then you can make the multiplication:


b. You can convert from centimeters to meters, and then you can make the multiplication:

c. You only need to divide 1,140 meters by 12:

d. You can convert from hectometers to kilometers, from decameters to kilometers and from meters to kilometers, and divide this by 15:



km
None of the graphs have a slope and y-intercept equal to y = x - 2.
y = x - 2 has a slope of 1 and y-intercept of -2, none of the graphs you shown have a slope of 1.
The answer is 2.625$ rounded up to 2.63$