Question

EASY POINTS!!

Answer 1

True

This curve passes the vertical line test, therefore it is a function.

The idea behind the vertical line test is that if you draw any vertical line, it has to intersect the curve only once. If there is more than 1 intersection, then it is not a function.

ps: This is a quadratic function of equation

$f(x) = - x {}^{2} + 4$