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harkovskaia [24]
3 years ago
13

Evaluate the function f (x)=-2x+3 for x=-1

Mathematics
1 answer:
vazorg [7]3 years ago
3 0

Answer:

f ( - 1 ) = 5        

Step-by-step explanation:

Step 1:

f ( x ) = - 2x + 3         Function

Step 2:

f ( - 1 ) = - 2 ( - 1 ) + 3         Input x value

Step 3:

f ( - 1 ) = 2 + 3        Multiply

Answer:

f ( - 1 ) = 5        Combine Like Terms

Hope This Helps :)

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The diagram below shows part of the graph of y=g(x) .
son4ous [18]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The related function is reflected across the x-axis and translated up 3 units. Effectively, it is reflected across the line y = 3/2. The graph of the related function is shown in blue in the attachment.

6 0
2 years ago
#2
I am Lyosha [343]

You have the right idea that things need to get multiplied.

What should be done is that the entire fraction needs to get multipled by the lowest common denominator of both denominators.

Let's look at the complex numerator. Its denominators are 5 and x + 6. Nothing is common with these, so both pieces are needed.

The complex denominator has x - 3 as its denominator. With nothing in common between it and the complex numerator, that piece is needed.

So we multiply the entire complex fraction by (5)(x + 6)(x -3).

Numerator: (\frac{1}{5} -\frac{5}{x + 6})(5)(x +6)(x-3) =\frac{1}{5}(5)(x +6)(x-3) -   \frac{5}{x + 6}(5)(x +6)(x-3)

= (x+6)(x-3) - (5)(5)(x-3)

= (x+6)(x-3) - 25(x-3)

= (x-3)(x + 6 - 25) <--- by group factoring the common x - 3

= (x -3)(x - 19)

Denominator:

\frac{25}{x - 3} * (5)(x + 6)(x - 3) = (25)(5)(x + 6) = 125(x + 6)


Now we put the pieces together.


Our fraction simplies to (x - 3) (x - 19) / 125 (x + 6)

5 0
3 years ago
Quantity of Jackets Price (in whole dollars) Total Revenue Marginal Revenue Total Cost Marginal Cost Profit (or loss) 0 20 1 20
KonstantinChe [14]

Answer:

18 dollars

Step-by-step explanation:

Marginal cost can be defined as the additional cost to produce every additional unit of a certain good. In mathematical terms;

Marginal cost = change in cost / change in quantity

For seven jackets, we have to find the difference between the cost of seven jackets and the cost of six jackets as follows

$101 - $83 = $18

Since the change in quantity is one, our marginal cost comes to $18.

3 0
3 years ago
Lori is 6 years
Delicious77 [7]

Answer:

12:6

Step-by-step explanation:

6 times 2 because Lori is six and her cousin is twice her age (hope it helps)

7 0
2 years ago
Thomas received a $50 gift card for an online store, and he wants to buy LED lights to decorate his bedroom. If one strand
olga nikolaevna [1]

Answer:

Thomas can buy 4 strands.

Step-by-step explanation:

We need to round $11.86 to the nearest dollar, which is $12.

Now we ask ourselves, "how many times does 12 go into 50 without going over?"

12 × 4 = 48

12 can go into 50 4 times.

8 0
3 years ago
Read 2 more answers
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