Answer:
243.9
Step-by-step explanation:
Trust I got it right bro
Trying to help
... and then?
You didn't eve give a question
Answer is 4 and 3
<span>
3^2 = 7(3) - 12
9 = 21 - 12
9 = 9
</span>4^2 = 7(4) - 12
16 = 28 - 12
16 = 16<span>
</span><span>
</span>
The formula for direct variation is y = k × x and the formula for inverse variation is y = k/x
The direct variation represented by the equation
y ∝ x
Its is y directly proportional to x
Where x is the independent variable
y is the dependent variable
By replacing the ∝ sign with the equal sign. The equation will be
y = kx
Where k is the constant of proportionality
Similarly the inverse variation is
y ∝ 1/x
Replace the ∝ sign with the equal sign
y = k/x
Therefore, the direction variation represented by y = k × x and inverse variation represented by y = k/x
Learn more about direct variation here
brainly.com/question/13977805
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Answer:
Option B is correct.
The point which lies on the new graph g(x) is, (-3, 7.5)
Step-by-step explanation:
For a base function f(x), a new function g(x) = cf(x) is vertically stretched by a factor c if c> 1.
Given the parent function: f(x) =|x|
Now, by vertically stretched definition,
A function f(x) is vertically stretched by a factor of 2.5 then; we have the new function or new graph i.e,
g(x) = 2.5 f(x) where c=2.5 > 1
therefore, g(x) =2.5|x|
We have to find which point lies on the new graph;
Option A:
(-4 , -4)
Here x = -4 and g(-4) = -4
-4 = 10 False.
Option B:
(-3 , 7.5)
g(x) = 2.5|x|
7.5 = 7.5 True.
Option C:
(-2 , 5.5)
5.5 = 2 False.
Option D:
(-1 , -2.5)
-2.5 = 2.5 False
Therefore, from above you can see that the only point which is true for the new graph is, (-3 , 7.5)