Which must be true of a quadratic function whose vertex is the same as its y-intercept? the axis of symmetry for the function is x = 0. the axis of symmetry for the function is y = 0. the function has no x-intercepts. the function has 1 x-intercept.

step-by-step explanation:

i think you should think about the question and not look online.

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.