Answer:
fog = 2√(x-1) + 1
Domain = [1, 
)
Step-by-step explanation:
Given the functions f(x)=2x+1 and g(x)=sqrt(x-1), we are to find the composite function fog
fog = f(g(x))
f(g(x)) = f(√(x-1))
f(√(x+1)) means that we are to replace variable x in f(x) with the function √(x-1)
f(√(x-1)) = 2(√(x-1))+1
f(√(x+1)) = 2√(x-1) + 1
fog = 2√(x-1) + 1
<em>For the function to exist on any real valued function, then the function inside square root i.e x-1 must be greater than or equal to zero (x-1≥0)</em>
If x-1≥0
x≥0+1
x≥1
This means the range of variable x must be values of x greater than or equal to 1.
Domain = [1, )
Y=3negativeX+18. y=3(-x)+18. I hope I helped.
Answer:
OH MY GOD I NEEED HELP WITH QUESTION TOOOOOOO
X less than 10 is the answer I think
Step-by-step explanation:
You can write an equation of a line conveniently by point-slope form. It's in the form of 
where 
is the coordinates of a point that's on the line and 
is the slope of the line.
Now choose a point (It doesn't really matter which one) and plug that in the equation. I'll choose 
where 
and 
The next thing we have to do now is finding the slope, , where it's equal to 
. I'll make point 1 and 
point 2.
Now let's plug that to our equation.
Now we have the equation but out of all the choices it seemed that all of them are in slope-intercept form all you have to do now is make our equation rewrite it in slope-intercept form.
<h3>Answer:</h3>
is your equation.
