Which transformation represents a reflection over the y = x line? (x, y) -- (-x, y)
(x, y) - (-x, -y)
(x, y) → (y, x)
(x, y) = (y, -x)

Solve 2x+y=3 x+y=5 in substitution method

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ