Answer: Im confused. an image please?
Step-by-step explanation:
Answer: see proof below
<u>Step-by-step explanation:</u>
Use the Double Angle Identity: cos 2A = 2cos²A - 1
Use the Difference Identity: cos (A - B) = cosA · cosB + sinA · sinB
Use the Unit Circle to evaluate: cos (π/2) = 0 & sin (π/2) = 1
<u>Proof LHS → RHS</u>

LHS = RHS: sin A = sin A 
Answer:
v(x) = 880(1 -x/7)
Step-by-step explanation:
If the appliance is worthless in 7 years, its value decreases by 1/7 of its original value each year. The multiplier of value for a 7-year depreciation can be ...
(1 - x/7)
So, the refrigerator value can be modeled by ...
v(x) = 880(1 -x/7)
F(x) = -2x +1 ( slope = -2 y intecept is 1)
replace x with 0 and solve for y =-2(0)+1 = 1 ( 0,1)
replace x with 2 and solve for y: -2(2) +1 = -4+1 = -3 (2,-3)
plot those 2 coordinates and draw a line
this is the red line on the attached graph
do the same for the g(x) formula
blue curve on graph.