Using Hints - Texas Instruments TI-73 Software Manual

Using Hints

If you are not sure about the values of a graph, you can obtain a
hint, which marks some points on the graph and lets you trace
the graph.
1. Select
2. Press | or ~ to trace the graph and display the (x, y)
coordinates of the points given in the hint.
Function Type
y = mx + b
ax + by = c
y = a·x² + k
y = a·(x – h)² + k
TI-73 / TI-83 Plus Guess My Coefficients App
.
HINT
Points Given in Hints
The y-intercept (0, b); one other point on the
graph
Intersections with the axes (c/a, 0 ) and (0, c/b)
The vertex (0, k); one other point on the graph
at x = 1
The vertex (h, k); one other point on the graph
at x = h + 1
The hint shows
the x-intercepts
for this function.
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