Question

If the graph of f(x) = x is shifted up 9 units, what would be the equation of the new graph?

Answer 1

x+9

Explanation:

f(x) = x, going up 9

that is y=x, going up 9

if you wnat to go up, subtract 9 from y

y -9 = x

y=x+9

convert back to f(x)

f(x) = x+9