Which is f(5) for the function –2x2 + 2x – 3? –107 –63 –43 –37

Answers

Answer 1

Answer: If f(x) = - 2x² + 2x - 3, then f(5) will be
$f(x)=- 2x^(2) + 2x - 3\n f(5)=- 2(5)^(2) + 2(5) - 3\n f(5)=- 2(25) + 10 - 3\n f(5)=-50 + 10 - 3\n f(5)=-43$

Thus, your answer is C, -43.

Answer 2

Answer:

You can just put that value 5 in place of x and then evaluate the output.

The value of f(5) for the given function is given by:

Option C: -43

How to evaluate functions on a given point?

Use the definition of function to evaluate the function on a given point. Most of the time, in general cases, the function will be algebraic and you just need to replace the input variables with the value of the point you want to evaluate the function on.

How to evaluate f(5)?

Since it is given that

$f(x) = -2x^2 + 2x - 3$

thus, replace x with 5 everywhere and evaluate the result as:

$f(5) = -2 * (5)^2 + 2 * (5) - 3 = -2 * 25 + 10 - 3 = -50 + 7 = -(50 - 7) = -43\nf(5) = -43$

Remember that $2x$ is 2 multiplied by $x$ , and so as $-2x^2 = -2 * x^2$

And $x^2 = x * x$

We get,

The value of f(5) for the given function is given by:

Option C: -43

Learn more about evaluating a function here:

brainly.com/question/2753269

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What is a unit? * what is a unit? a process used to convert units and rates using a conversion factor and multiplication a quantity used as a standard measurement a solution or an answer a mathematical phrase involving at least one variable and sometimes numbers and operation symbols

Answers

Answer:

C. a quantity used as a standard measurement

Step-by-step explanation:

A unit is a universally acceptable system of measurement. The system is majorly referred to as the international standard of units i.e (SI) units.

Since physical quantities could be categorize as either fundamental or derived. The use of units in measurement is very essential, because it relates the magnitude measured to the physical quantity.

The units of measurement tells what physical quantity has been measured.

If the rate 30 hot dogs per 5 minutes is reduced to a unit rate, the result is . Do not include units in your answer.

Answers

The notion of a unit rate is how much will happen in a unit of measurement. The question indicates there are 30 hotdogs in a total of 5 minutes, averaging 6 hotdogs per minute, or .1 hotdogs per second. This is done by dividing the total into equal 'chunks' of that unit of time.The question therefore does not make sense to "not include units".

I think it would be 6 hotdogs per 1 minute. Because that's a rate, and rates can be written as fractions,and fractions are division problems, so 30 divided by 5 is 6.

The graph of the function f(x) = (x + 2)(x − 4) is shown.Which describes all of the values for which the graph is negative and increasing?

all real values of x where x < −2
all real values of x where −2 < x < 4
all real values of x where 1 < x < 4
all real values of x where x < 0

Answers

The function is negative below the zeros which would be from -2 to 4.
It would be increasing from the vertex to the zero,4.
So the answer would be 1 < x < 4

The values for which the graph is negative and increasing are all real values of x where 1 < x < 4.

Given

The graph of function;

$\rm f(x) = (x + 2)(x - 4)$

What is a graph?

A graph goes from being negative to positive (or the other way around) by passing through the x-axis. in other words when f(x) = 0.

Then,

$\rm f(x) = (x + 2)(x - 4)=0\n\nx+2 =0\ x=-2\n\nx-4=0\ x=4$

For increasing and decreasing for anything other than a quadratic and linear function you need calculus.

The function is negative below the zeros which would be from -2 to 4.

It would be increasing from the vertex to zero,4.

Hence, the values for which the graph is negative and increasing are all real values of x where 1 < x < 4.

To know more about Graph click the link given below.

brainly.com/question/3001106

Pls help me my homework is due tomorrow lol