Pls help simple stuff if you know it. I obviously don't

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

6 0

Answer:

The answer to your question is y = 2 $.^{x}$ + 5

Step-by-step explanation:

Because of the distribution of the points, we conclude that it is an exponential function so we discard the third option (it's a linear function) and the fourth option (it's a quadratic function)

- To solve this problem, evaluate functions 1 and 2 using the x-coordinates and compare the results with the graph

y = 2 $.^{x}$ + 5 y = 4 $.^{x}$ + 8

1 y = 2 + 5 = 7 y = 12

3 y = 8 + 7 = 15 y = 21 + 8 = 29

5 y = 32 + 7 = 39 y = 1024 + 8 = 1032

7 y = 128 + 7 = 135 y = 16384 + 8 = 16392

9 y = 512 + 7 = 512 y = 262144 + 8 = 262152

11 y = 2048 + 7 = 2055 y = 4194312 + 8 = 4194320

13 y = 8192 + 7 = 8199 y = 67108864 + 8 = 67108872

15 y = 32768 + 7 = 32775 y = 1073741832 + 8 = 1073741840

Comparing the result with the graph, we conclude that the answer is the first choice.

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Answer:

1. We can see that salesperson's weekly income is the sum of her constant weekly salary ($760) and a commission which is variable and depends on her weekly sales.

So, if we say that y is her weekly income and x is her weekly sales, we can write this as:

y = 760 + 0.075x

Note that we had to change percentage to decimal number dividing it by 100.

2 Since for each value of x there is only one corresponding value of y, we can say that this is a function. For any value of x we input there is only one solution we get - that is the main feature of function and a way to tell if something is really a function.

Since this is a function, it can also be written as:

f(x) = 760 + 0.075x

3. Domain of a function is, basically, set of all values of x for which the function can work. That practically means that, since x is weekly sale, it can not be negative (one cannot make -$500 sale, for example). However, it is possible that she doesn't make a sale one week, making it possible for x to be 0. Also, the value of her sales doesn't have to be integer (it is quite possible that she makes $673.50 sale).

All this means that appropriate domain for this function are positive real numbers including 0.

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Any help would be greatly appreciated

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Answer:

$\boxed{\sf \ \ \ 49a^8b^6c^2 \ \ \ }$