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3 years ago

Use the table below to determine whether f(x) could represent a linear function If it could write f(x) in the form f(x)=mx+b

Mathematics

1 answer:

Elodia [21]3 years ago

3 0

Answer:

f(x) = 6x - 5

Step-by-step explanation:

We see f(x) increase is linear and is 6 at each step, so m = 6 and y-intercept is b = -5, from point (0, -5)

<u>So the function is:</u>

f(x) = 6x - 5

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Ben's Game World is having a sale on video games. The store is offering a sale pack of 4 video games for $43.80. What is the uni

AleksandrR [38]

Answer:

Answer:

a) 10.95

b) 76.65

Step-by-step explanation:

To find the unit price of Ben's video games, divide 43.80 by 4, which is equal to 10.95. So, the unit price is 10.95 at Ben's Game World.

Then, using the unit price we found earlier, multiply 10.95 by 7, which will gives us the cost of 7 games at Roberto's Electronics. You'll get 76.65. So, the cost of 7 games at Roberto's Electronics, using the same unit price at Ben's Game World, would be 76.65.

Hope this helps :)

6 0

3 years ago

The domain of the function given below is the set of all real numbers true or false; f(x)=(1/2)^x

igomit [66]

No, this is false because (x) is not a linear equation.

8 0

4 years ago

Read 2 more answers

What is the domain and range of the problem? How many beats will she have in half an hour? Is the graph discrete or continuous?

san4es73 [151]

From the statement, we know that Miss Butterkey's heart rate is 80 beats per minute.

So the ratio of beats per minute is:

$r=80\cdot\frac{\text{beats}}{\min }\text{.}$

The number of beats as a function of time is given by the product:

$b(M)=r\cdot M\min =80\cdot\frac{beats}{\min}\cdot M\cdot\min =80M\cdot\text{beats.}$

Where t is the time in minutes.

(0) If we define:

• M = # of minutes,

• b = # of beats after M minutes.

Using the equation of b(t), we have:

$b=80M\text{ beats }\Rightarrow M(b)=\frac{b}{80}\text{.}$

(1) Domain and range

If we consider the independent variable as the number of minutes M, the domain is:

$\text{Domain = 0, 1, 2, 3, }\ldots\text{.}$

If we consider the dependent variable as the number of beats b, the range is:

$\text{Range = }0,80,160,240,\ldots\text{.}$

(2) # of beats after half an hour

After half an hour the time is t = 30 min. Replacing this value in the equation of b(t), we get:

$b(30\min )=80\cdot\frac{beats}{\min}\cdot30\cdot\min =2400\text{ beats.}$

(3) The graph of heartbeats as a function of the minutes is discrete. That's because we can only have an integer number of beats.

(4) Labels of the graph

• horizontal label: number of minutes M,

• vertical label: number of beats b.

(5) Graph

Answers

• (0), M(b) = b/80

• (1) ,Domain = 0, 1, 2, 3, ... , Range = 0, 80, 160, 240, ...

• (2), b(30 min) = 2400 beats

• (3), The graph is discrete.

• (4) ,Horizontal label: # of minutes M, Vertical label: # of beats

• (5), Graph

3 0

1 year ago

How do i solve this ? :')

Vesna [10]

I think you are supposed to make the fraction equivalent so you know that 27/9 is 3, so you would do the same thing whatever number is supossed to be under 17 needs to equal to 2 when divided by 9. So you should probably know that 3 * 9 is 18 so x needs to be a number that when subtracted by 5 gives you 18. So x=23. Hope this is right and it helps!

4 0

3 years ago

What is the value of x PLEASE HELP

Sindrei [870]

Answer: X= 30

Step-by-step explanation: So I must admit that is a really weird place to put that line, but if this is a complementary angle and the first angle is 30 degrees, then the other angle should be 60 degrees. 60/2 is 30, so therefore x=30

5 0

3 years ago