01
Press these keys
TRACE→2nd→TRACE→1:value
Step 1 of 4. Press TRACE.
02
Walkthrough
- 1Trace
On the graph press TRACE and move with ←/→. Use ↑/↓ to switch functions.
- 2Exact x-value
Press 2nd → TRACE (CALC) → 1:value, type x, then ENTER.
- 3Home-screen alternative
Use VARS → Y-VARS → Function → Y1, then supply (x).
03
Worked example
For Y1=x²−4, find f(3).
NORMAL FLOAT AUTO REAL MP
X=3Y=5Answerf(3)=5.