Question

Select the correct answer.

Which statement is true about this equation?
y = -3x² + 4x - 11
О А.
It represents a function only.
OB.
It represents a relation only.
C.
It represents neither a relation nor a function.
O D.
It represents both a relation and a function.

Answer 1

D this is a quadratic equation and if we draw it's graph it will represent a parabola. this means that the equation is a function. It also represents a relation ,if the gradient is negative it will face downwards and if it's positive it will face upwards.