Answer:
Step-by-step explanation:
In the image attached we observe a parabola and a line.
Both of them are functions, to deduct that you can apply the vertical test, which is about drawing a vertical line across the functions, if the lines only intercept the curve in one point, that means such curve is a function.
Being said that, you can figure it out that both graph represent a function.
The equation of the parabola is
[tex]y=x^{2} +1[/tex]
The equation of the line is
[tex]y=-x[/tex]
Therefore, both graph represent functions.
