Verified answer

The image of (-∞,∞) under the function -3^x is (-∞,0). Hence the answer is (-∞,-1).

Bieber is actual in his calculation of the inverses of the two purposes, and the area and variety of the 1st. to discover the area of the 2d function, image (or comedian strip) the graph of e^x. As x gets further and further detrimental, it procedures the x axis from the useful y facet. It crosses the y-axis at (0,one million), then is going upwards. The area of this function is all genuine numbers, and the diversity is y > 0. So, on your concern, the area is all genuine numbers and the diversity is y > 0.