What are the domain and range of the graph? Is the graph a function? Explain.

Mathematics

1 answer:

kumpel [21]3 years ago

8 0

Answer:

Domain: -3 < x <2

Range: -4 < y < 5

Is the graph a function? No the graph isn't not, since the graph fails the vertical line test

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I need help I have searched everywhere and nothing

Marta_Voda [28]

Answer:

See attached

Step-by-step explanation:

All answers in one graph, refer to attached

The function we need is

C(x) = 100(2*5280 - x) + 180 $\sqrt{800 +x^2}$ , where 2*5280= 2 miles

Table included as well

The vertex is about x = 19 ft which corresponds the minimum cost

Any other value, including negative reveal greater cost

Note. there is a bit confusion over 2 miles or 2000 ft, but the graph is going to be same in shape and vertex for x, the value for cost will be different

3 0

3 years ago

I’ve posted this a lot already and i keep getting it wrong can you help pls?

Schach [20]

Answer: See below; x=1/6

Step-by-step explanation:

This problem may seem intimidating, but all you need to know are your exponent rules. Let's first work inside the parenthesis. Since the bases are the same, we can directly subtract the exponents.

$\frac{3}{4} -\frac{3}{8}$ [common denominator]

$\frac{6}{8} -\frac{3}{8}$ [subtract]

$\frac{3}{8}$

Now, our new answer is $(3^\frac{3}{8} )^\frac{4}{9}$ .

Unfortunately, the answer is asking for an exponent with a single base. One of the properties is when the exponents are separated by parenthesis, you multiply them together.

$\frac{3}{8} *\frac{4}{9}$ [cross cancel to simplify]