All categories

3 years ago

Please help me answer this with the correct answer :)

Mathematics

1 answer:

Vlad1618 [11]3 years ago

8 0

Answer:C

Step-by-step explanation:

For every function; f(x) = y

Each value of 'x' produces only one output 'y'

A,B and D are not functions because this rule is violated. It is observed that on the graphs of A,B and D, there exists a value of x that produces two outputs(y).

Hence, C is the correct option as it produces only one output 'y' for each value of x.

You might be interested in

Factor each completely.<br> b^2 + 8b + 15

kvv77 [185]

Answer:

idk lol

Step-by-step explanation:

5 0

3 years ago

dybincka [34]

Answer:

1=50

2=90

3=60

4=60

5=60

6=60

7= 120

Step-by-step explanation:

3 0

3 years ago

Solve. 5 + 2(x + 1) = 2x

Zinaida [17]

No solution :P

i even used photomath to do this, it doesnt show anything

8 0

3 years ago

The junior and senior class officers are sponsoring a homecoming dance. The total cost for the facilities and catering is $45 pe

larisa86 [58]

Answer:

Domain is (0,∞)

Range is (45, ∞)

Step-by-step explanation:

Let x represents the number of persons and f(x) represents the average cost per person,

∵ Fixed cost = $ 2500

Also, additional cost is $ 45 per person,

So, the total cost for x persons ( in dollars ) = fixed deposit + additional cost for x persons,

= 2500 + 45x

$\text{Average cost for x persons}=\frac{\text{Total cost}}{x}$

$\implies f(x)=\frac{2500+45x}{x}$

Which is a rational function,

∵ A rational function is defined for all real numbers except those for denominator = 0

Denominator of f(x) = x

So, f(x) is defined for all real numbers except x ≠ 0,

Now, the cost can not be negative,

⇒ x > 0

Hence, the domain for f(x) is (0, ∞)

Again,

$f(x)=45+\frac{2500}{x}$

If $x\rightarrow \infty$

$f(x)\rightarrow 45$

So, 45 < f(x) < ∞

i.e., range of f(x) is (45, ∞)

5 0

3 years ago

Can someone help me ill give u brainiest!

Nuetrik [128]

1- B

2- C

3a- false
3b- false
3c- true
3d- true
3e- true

6 0

3 years ago