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WINSTONCH [101]

3 years ago

6

F(x) = (x - 4)(x+2) ?

2 answers:

oee [108]3 years ago

8 0

Answer:

Step-by-step explanation:

f(x) = (x - 4)(x + 2)

f(x) = x^2 + 2x - 4x - 8

f(x) = x^2 - 2x - 8

sergij07 [2.7K]3 years ago

3 0

X1=-2 X2=4 use photomath chose language Italian better because you don’t need to pay

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Elena-2011 [213]

Answer:

I don't see the photo. Can't help OOF

Step-by-step explanation:

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3 years ago

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yuradex [85]

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3 years ago

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Jonas jogged up the hill at an average rate of of a mile per minute and then walked down the hill at an average rate of of a mil

jenyasd209 [6]

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2 years ago

Consider function f.

tekilochka [14]

Given:

The function is:

$f(x)=\sqrt{7x-21}$

To find:

The steps of finding the inverse function $f^{-1}(x)$ .

Solution:

We have,

$f(x)=\sqrt{7x-21}$

The steps of finding the inverse function are:

Step 1: Substitute $f(x)=y$ .

$y=\sqrt{7x-21}$

Step 2: Interchange x and y.

$x=\sqrt{7y-21}$

Step 3: Taking square on both sides, we get

$x^2=7y-21$

Step 4: Adding 21 on both sides, we get

$x^2+21=7y$

Step 5: Divide both sides by 7.

$\dfrac{1}{7}x^2+3=y$

Step 6: Substitute $y=f^{-1}(x)$ .

$\dfrac{1}{7}x^2+3=f^{-1}(x)$ , where $x\geq 0$ .

Therefore, the inverse of the given function is $f^{-1}(x)=\dfrac{1}{7}x^2+3$ and the arrangement of steps is shown above.

7 0

3 years ago

Attached please find my maths problem to be solved and graphed

ki77a [65]

Answer:

Attached is the sketch

X-axis intersections:

(-3,0)

(0,0)

(1,0)

Points of inflection:

(-1,319,-2.881) Concave upward

(0.569,1.041) Concave downward

Step-by-step explanation:

Desmos (I'm not allowed to post the link, pls search it up) is a great help for these type of problems!

8 0

2 years ago