Answer:
midline = 1.5
Step-by-step explanation:
f(x) = d + a*cos (bx+c)
a = amplitude
b = part of the period
c = horizontal shift
d = vertical shift (midline location)
d = 1.5
Answer:
60°
Step-by-step explanation:
all angles add up to 360,so 360-(90×2)=180
180÷3=60°
Answer:
B
Step-by-step explanation:
-5x - 7 < 28
-5x < 35
x < -7
Answer:
Option 1 and Option 4.
Step-by-step explanation:
The given graph is y = tanx
Now we will check the points given in the option.
For (4π/3, √3)
y = tan(4π/3) = tan(π+π/3) = tan(π/3) [tan(π+∅) = tan∅]
y = √3
right option.
For (π/4,-1)
y = tan(π/4)=1
Therefore incorrect option.
For (π/6, -√3/3)
y = tan(π/6) = 1/√3 = √3/3
So incorrect option.
For (π/3, √3)
y = tan π/3 = √3
Correct option.
For (1, -π/4)
y = tan(1) = value in radians will be positive
So incorrect option.