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bogdanovich [222]
3 years ago
6

Is y=x^2 a proportional relationship?

Mathematics
1 answer:
TiliK225 [7]3 years ago
6 0

Answer:

is y=x^2 a proportional relationship?

{ \sf{yes. \: constant \: of \: proportionality = 1}}

is y=2+x a proportional relationship?

{ \sf{no. \: unless \: y \: is \: proportinal \: to \: (2 + x)}}

is y=2/x a proportional relationship?

{ \sf{yes. \: where \: proportianality \: constant \: is \: 2}}

is y=2x a proportional relationship?

{ \sf{yeah. \: constant \: is \: 2}}

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Solve for x and y. they both have to be the same number for each equation
Elis [28]
Hey there! :D

y=2x-9

We can plug that in as y, since y is equal to 2x-9. 

5x-3(2x-9)= 23

Distribute. 

5x-6x+27= 23

-1x+27=23

Subtract 27 on both sides. 

-1x=-4

Divide both sides by -1.

x=4

Now, plug that in for y. 

y=2(4)-9

y=8-9

y=-1

 (4,-1) <== solution

I hope this helps!
~kaikers
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3 years ago
Given that (5,-8) is on the graph of f(x), find the
FinnZ [79.3K]

Answer:

The corresponding point is (3,-8)

Step-by-step explanation:

we know that

When you add a constant value (k), to the argument of a function, the graph is shifted  k units to the left.

so

In this problem

The rule of the transformation is equal to

f(x) ------> f(x+2)

(x,y) ------> (x-2,y)

(5,-8) -----> (5-2,-8)

(5,-8) -----> (3,-8)

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3 years ago
What is the place value of the 9 in 194.6
Zielflug [23.3K]

Answer:

The tens.

Step-by-step explanation:

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3 years ago
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