Without graphing, determine the equation of the axis of the function y=-2.6 cos(5x) + 8.4

Explanation:

The given equation is in the form

y = A*cos(B(x-C))+D

where

A = -2.6

B = 5

C = 0

D = 8.4

The value of D determines the horizontal axis that passes through the center of the cosine function. The equation of this axis line is y = 8.4

This is a horizontal line in which all points have y coordinate of y = 8.4

v: l•w•h÷2.

v: 20•6•8 ÷2

v: 960÷2

v: 480

true

step-by-step explanation:

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