A manufacturing plant earned $80 per man-hour of labor when it opened. Each year, the piant earns an
additional 5% per man-hour.
Write a function that gives the amount A(t) that the plant earns per man-hour t years after it opens.
A(t)=??

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0