SOLUTION: find the range and x and y intercepts of y=(4^x+2) - 3 and graph

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Question 384029: find the range and x and y intercepts of y=(4^x+2) - 3 and graph
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Range is (-3, infinity). Y-intercept is y+=+4%5E%280%2B2%29+-+3+=+16-3+=+13. X-intercept is found by solving0+=+4%5E%28x%2B2%29-3, or 3=+4%5E%28x%2B2%29. Take ln of both sides to get: ln3 = ln4(x+2), or ln3/ln4 = x+2, or x+=+ln3%2Fln4+-+2.