By writing an equation you can easily solve this:
18+ X + 4X - 1 = 42
•we need the answer to 4X-1
1. put the parts that include the X parameter in one side and the integer numbers in one side :
X + 4X = 25
5X= 25
X= 5
2. 4X-1 —> 4x5-1 = 19
Answer:
Domain of the function is Option 1. (-∞,1)∪(1,∞).
Step-by-step explanation:
In the question two functions have been given as
f(x) = (x-1)/2x and g(x) = (x-1)/x
Now we have to find a function defined as (f Ф g(x))
We put the value of g(x) in f(x) to find a new function defined as fФ(g(x))
⇒ fФ(g(x)) = ![\frac{(\frac{x-1}{x}-1) }{2(\frac{x-1}{x})} \\](https://tex.z-dn.net/?f=%5Cfrac%7B%28%5Cfrac%7Bx-1%7D%7Bx%7D-1%29%20%7D%7B2%28%5Cfrac%7Bx-1%7D%7Bx%7D%29%7D%20%5C%5C)
Now we multiply numerator and denominator by x.
fФ(g(x) = ![\frac{x-1-x}{2(x-1)}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-1-x%7D%7B2%28x-1%29%7D)
= ![-\frac{1}{2}(\frac{1}{x-1})](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B2%7D%28%5Cfrac%7B1%7D%7Bx-1%7D%29)
The function is defined only if (x-1)>0 ⇒ x >1
and (x-1)<0 ⇒ x <1
So the domain will be the combined set of ( 1,∞) and (-∞,1) or (1,∞)∪(-∞,1).
Answer:
15 no is Relation
16 no is function
17 no is Relation
18 no is function
19 no is function
20 no is Relation
I HOPE IT WILL HELP YOU.
Thank you.
<u>Teddy</u><u> </u><u>lover</u><u>.</u><u>.</u>
The equations will be y-b/ x =m/1, y-b=m(x) and y=mx +b
Step-by-step explanation:
In the diagram you can show the two triangles are similar by showing that the ratio of rise to rum is equal.This is
y-b/ x =m/1 Multiplying both sides by x y-b=m(x) Adding b on both sides will eliminate the b on the left side as; y-b+b= mx+b y=mx +b where m is the slope and b is the y-intercept
Learn More
To write the slope-intercept equation : brainly.com/question/10676927
The slope intercept equation : brainly.com/question/11514369
Keywords : slope intercept equation
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