3 years ago

The graph if a function is always a straight line true or false

Mathematics

1 answer:

HACTEHA [7]3 years ago

4 0

This statement is false. Graphs of functions are NOT always straight lines.

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Factor completely 5x^2 − 40.

AVprozaik [17]

Answer:

5(x^2−8

Step-by-step explanation:

There you go

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3 years ago

2.<br> Which of the functions below is an inverse of the quadratic function f(x) = x2 - 3 ?

mezya [45]

Answer:

the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

Step-by-step explanation:

We need to find inverse of the quadratic function $f(x) = x^2 - 3$

Let

$y=x^2-3$

Replace x and y

$x=y^2-3$

Now, we will solve for y

Adding 3 on both sides

$x+3=y^2-3+3$

$x+3=y^2$

Taking square root on both sides

$\sqrt{y^2}=\sqrt{x+3}\\y=\pm \sqrt{x+3}$

Now replace y with $f^{-1}(x)$

$f^{-1}(x)=\pm \sqrt{x+3}$

So, the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

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3 years ago

Danny and 4 friend go to the movies. Each person buys a movie ticket for $10, a snack for $2 and a drink for $3. Write an expres

Serggg [28]

8000647 dollars

Step-by-step explanation:

broggxtxycycuvuh8y7rtwh4w5iwutettixgdbf

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3 years ago

In an aquarium,2/5 of fish are surgeon. Of these ,3/4 are yellow tangs.what fraction of all fish in the aquarium are yellow tang

hoa [83]

8 are surgeon, 15 are yellow tangs

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4 years ago

What is 823,563 rounded to the nearest ten thousand.

lilavasa [31]

Answer:

~8300,000 or 800,000

Step-by-step explanation:

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