Question 1 Determine whether a relation is a function, as well as its domain and range:
AWhich of the following relations are functions?
- y= -x+3
- x=y+3
- x-y=3
ANone of them
BAll of them
CChoice 2 only
DChoice 3 only
BFind the range for f(x)=x^2+1, for x>0.
Ay>1
By≥1
Cy<1
Dy≤1
^& not sure on this, but it's A or B?
CFind the domain for f(x)=(x-3)/(x-2)
Ax≠ -3
Bx ≠ 2
Cx ≠ -3, -2
Dx ≠ -2
^this one is B, right? that's what I got.
DFind the range of the function: f(x)=x+2, for x≠1.
AAll real numbers
By≠1
Cy≠2
Dy≠3
^this one is D, right? I got this too.
AWhich of the following relations are functions?
ANone of them
BAll of them
CChoice 2 only
DChoice 3 only
BFind the range for f(x)=x^2+1, for x>0.
Ay>1
By≥1
Cy<1
Dy≤1
CFind the domain for f(x)=(x-3)/(x-2)
Ax≠ -3
Bx ≠ 2
Cx ≠ -3, -2
Dx ≠ -2
DFind the range of the function: f(x)=x+2, for x≠1.
AAll real numbers
By≠1
Cy≠2
Dy≠3
