Kennedy uses in his "Remarks at the Dedication of the Aerospace Medical Health Center " speech . Both reasons support his claim that space medicine research will make life on Earth healthier and happier . How are these two reasons different ?

maybe i could if you provided more information, such as a image of the text? (;

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.