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MariettaO [177]

3 years ago

8

Which points are on the graph of the inverse?

2 answers:

Sphinxa [80]3 years ago

5 0

The points (1,-1) and (0, 0) lie on the line y=x and will be included on both graphs.

When a graph is inversed, the coordinates are also flipped. (-9, 3) also switches the sign, which is not a part of the inverted graph.

The other option (4, 2) is a flip on the given coordinates (2, 4) and would be present on the inverted graph.

Klio2033 [76]3 years ago

3 0

The difference of a function and its inverse is found by switching x and y
so if the function is (2,3)...then its inverse is (3,2)

(4,2)....correct
(1,-1)...correct
(0,0)...correct

I agree with ur answers

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I need help with #39-42, please explain.

shusha [124]

For question 39 & 40, we need to use the below equation to complete the sentence

$l=m\sqrt{n}$

Question 39:

When ' n ' increase, the $\sqrt{n}$ will also increase and that multiplied with constant ' m ', the l will also increase.

Solution for question 39:

As $n$ increases and $m$ stays constant , $l$ <u>increases</u>

-------

Question 40:

Solving the equation for m, we get

$l = m\sqrt{n} \\ \\ m=\frac{l}{\sqrt{n}}$

When ' l ' increases, the numerator increase, the denominator stays constant because 'n' stays constant, for this condition, the fraction increases.

Solution for question 40:

As $l$ increase and $n$ stays constant, $m$ <em><u>increases</u></em>

------

For question 41 & 42, we need to use the below equation to complete the sentence

$r=s^2/t^2$

Question 41:

When $s$ is triped, the equation will be...

$r=(3s)^2/t^2=\frac{3^{2}s^{2}}{t^2} =9s^2/t^2$

Solution for question 41:

If $s$ is tripled and $t$ stays constant, $r$ is multiplied by <em><u>9</u></em>

--------

Question 42:

When t is doubled, the equation will be...

$r=s^2/(2t)^2=\frac{s^2}{2^2 \cdot t^2}=\frac{s^2}{4t^2}\\ \\ r=0.25s^2/t^2 \; \; (or) \; \; \frac{1}{4} \cdot \frac{s^2}{t^2}$

Solution for 42:

If $t$ doubled and $s$ stays constant, $r$ is multiplied by <em><u>1/4 or 0.25</u></em>

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3 years ago