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Maurinko [17]
3 years ago
15

How can you use function notation to evaluate a function with a given equation?

Mathematics
1 answer:
Alona [7]3 years ago
3 0
Find f (3) when f (x) =2x is the same as finding u when x= 3 ,for y=2x

to evaluate a function substitute the input (the given number or expression ) for the functions variable(place holder x). Replace the x with the number or expression
You might be interested in
How many solutions does the system of equations shown below have?
rjkz [21]

Answer:

one solution with a y value of 5

Step-by-step explanation:

/| x+y-4 = 0| x-y-6 = 0

We try to solve the equation: x+y-4 = 0

x+y-4 = 0 // - x-4

y = -(x-4)

y = 4-x

We insert the solution into one of the initial equations of our system of equations

We get a system of equations:

/| x+x-6-4 = 0| y = 4-x

2*x-10 = 0 // + 10

2*x = 10 // : 2

x = 10/2

x = 5

We insert the solution into one of the initial equations of our system of equations

For y = 4-x:  

y = 4-5

y = -1

We get a system of equations:

/| y = -1| x = 5

4 0
3 years ago
The function f(x) varies directly with x and f(x)=12 when x=8
malfutka [58]
F(x) = kx
12 = 8k
k = 12/8 = 3/2

Required equation is f(x) = 3/2 x
4 0
4 years ago
Heyyyyy pleasse help me please please and thank you
dimulka [17.4K]

Answer:

x ≈ 33.1°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan x = \frac{opposite}{adjacent} = \frac{125}{192} , then

x = tan^{-1} ( \frac{125}{192} ) ≈ 33.1° ( to the nearest tenth )

7 0
3 years ago
Segment lm is the midsegment of trapezoid abcd. ab = 58, and dc = 98. what is lm?
kifflom [539]
Lm would be 78 because it is halfway between ab and dc and 98-58=40 and half of 40=20, so 58+20=78 or 98-20=78.
3 0
4 years ago
Gfern025 i dont know​
Kipish [7]

Answer:

???????????????????????????????????????

4 0
3 years ago
Read 2 more answers
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