Given the relation y = x2 − 5x + 4, find the outputs when x = −2, −1, 0, 1, 2, and 3, to determine whether the equation is a function.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

How many ordered pairs of positive integers satisfy xy=32?

Ithink i know it but i want to be sure so can you me out ?