The typist is estimated to type approximately 11.5 pages in 2.3 hours based on the graph of the function y=5x.
The given function y=5x represents the relationship between the number of pages typed (y) and the time spent typing (x). In this context, the coefficient 5 signifies that the typist is typing at a rate of 5 pages per hour. To estimate the number of pages typed in 2.3 hours, we substitute x=2.3 into the function.
y=5×2.3=11.5
Therefore, based on this estimation, the typist is expected to have typed approximately 11.5 pages in 2.3 hours. This calculation assumes a consistent typing rate of 5 pages per hour as described by the given linear function.