# Vertical Line Test

### Topic Page

Vertical Line Test### Questions

- What is Vertical Line Test?
- What is an example of a graph that fails the vertical line test?
- How do you use the vertical line test?
- When is a relation a function?
- How do you determine if the following sets of points is a function: #{(2,3), (-1, 3), (4, 7), (-1, 5)}#?
- Why does the vertical line test work?
- Does a linear graph pass the vertical line test?
- Does a vertical line pass the vertical line test?
- What is the vertical and horizontal line tests for 1-1 function?
- Is {(–2, 4), (5, 8), (3, 6), (5, 9)} a function?
- Is {(8, –1), (–8, 1), (6, –1), (8, 6)} a function?
- Is {(5, –4), (3, –4), (–5, 3), (–4, 5)} a function?
- Is (3,4),(5,4),(1,3),(4,1),(9,4) a function?
- Is (-4,1), (1,8), (-4,-2) a function?
- Is (-4,1), (1,-8), (-2,-2) a function?
- Is (-4,1), (1,-8), (1,-2) a function?
- Is the relation #2y=7+(x-3)^2# a function?
- Is #y=x^2 + 3x - 15# a function?
- Is #f(x) = 9# a function?
- Is #f(x)=(x^2 - 3x - 4)/(x^2 + 1)# a function?
- Is #f(x)=2x^2+4# a function?
- Is #f(x)=3x^-2 -3# a function?
- Is #f(x) = 2 - 2/x^6# a function?
- Is #f(x) =x^4sqrt(5-x)# a function?
- Is the relation #{(4, 2), (5, 2), (6, 2)}# a function?
- Is the relation #{(0, 3), (0, -2), (0, 1)}# a function?
- Is the relation #{(1, 3) (2, 4)}# a function?
- Is the relation #{(1, 1), (-1, 1), (2, 4), (-2, 4)}# a function?
- Is the relation #R ={(0,4), (1,5), (2,6), (2,7), (3,8)}# a function?
- Is #sqrt(x+5)# a function?
- For #x=0#, does it pass the vertical line test?
- How do you use the vertical line test to show #x-y^2=0# is a function?
- How do you use the vertical line test to show #x^2+y^2=9# is a function?
- How do you use the vertical line test to show #sqrt(x^2-4)-y=0# is a function?
- How do you use the vertical line test to show #x-xy+y+1=0# is a function?
- How do you use the vertical line test to show #x^2=xy-1# is a function?
- How do you use the vertical line test to show #x=absy# is a function?
- How do you use the vertical line test to show #x^2-4y^2+4=0# is a function?
- How do you use the vertical line test to show #y=abs(x-3)+abs(x-1)# is a function?
- How do you use the vertical line test to show #x^2+y^2=25# is a function?
- How do you use the vertical line test to show #y=3- sqrt(x+2)# is a function?
- How do you determine if (1, 5), (2, 6), (3, 7), (4, 8) is a function?
- How do you determine if (-1, 2), (-1, 3), (2, 4) is a function?
- How do you determine if #x²+y²=1# is a function?
- How do you determine if #2x+y=7# is a function?
- Question #e6694
- Can anyone tell the proof of 1+2+3+4+5+6+7+8+........upto infinity= -1/12 ?
- Question #bc809
- Is the equation #y=x^2 +3# a function?
- What is an example of a relation (not a function) in which {x ∈ R} and {y ∈ R}?
- Question #8e1cb
- Is the equation #x^2+y^2=4# a function?