How do you graph k(x) = ln (x + 3) + 6 ?

1 Answer
Mar 8, 2017

Use the parent function y = ln(x) and shift it horizontally 3 to the left (-3) and vertically up 6

Explanation:

The parent function y = ln(x) goes through (1, 0):

graph{ln x [-7.04, 12.96, -5.36, 4.64]}

Shift it horizontally 3 to the left ln(x+3) so it goes through (-2, 0) which is an x shift of -3 from (1, 0) :
graph{ln (x+3) [-7.04, 12.96, -5.36, 4.64]}

Shift it vertically up 6, ln(x+3) + 6 so (-2, 0) moves up to (-2, 6):
graph{ln(x+3) +6 [-4.58, 15.42, -0.64, 9.36]}