Question

write each equation explicitly in terms of x. then indicate whether the equation is a function. y^2-x^2+1=50

Answer 1

Explanation:

y² - x² + 1 = 50

y² = x² - 1 + 50 = x² + 49

y = ±sqrt(x² + 49)

this is not a function in that sense, as for every x there are not one but 2 y (result) values.