lidi92
03.01.2020 •
Mathematics
What is the equation of the following graph?
1. f(x) = tan x-2
2. f(x) = tan x + 2
3. f(x) = 2tan x
4. f(x) = tan x -3
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Ответ:
The required function is F(x) = tanx - 2.
Step-by-step explanation:
We all know the graph of tanx ,
The graph of tanx passes through the origin and repeats in the interval of π.
Now , after looking into the graph we can clearly say that it is the shifted graph of tanx , Which is shifted in the -y direction .
Thus ,
It is clear that F(x) must be like F(x) = tanx - c , where c is a positive constant .
Also, At x = 0 , Value of the function is coming out to be -2 ,
Putting x = 0 in F(x) = tanx - c , we get , F(x) = -c .
Thus c = 2.
So, the required function is F(x) = tanx - 2.
Ответ:
(a) x = 30°
(b) mRS = 30°
mST = 120°
mTU = 120°
mUR = 90°
Step-by-step explanation:
(a) In the picture attached, the diagram is shown.
Given that m arc RS = x, from the ratios:
m arc ST = 4x
m arc TU = 4x
m arc UR = 3x
The addition of the four arcs must be equal to 360°, then:
x + 4x + 4x + 3x = 360°
12x = 360°
x = 360°/12 = 30°
(b) m arc RS = x = 30°
m arc ST = 4x = 4*30° = 120°
m arc TU = 4x = 4*30° = 120°
m arc UR = 3x = 3*30° = 90°