A contour map for a function
f
\displaystyle {f}
f
is shown. Estimate the value of
f
y
(
2
,
7
)
\displaystyle {{f}_{{y}}{\left({2},{7}\right)}}
f
y
(
2
,
7
)
1
2
3
4
5
5
10
70
140
210
280
350
f
y
(
2
,
7
)
≈
\displaystyle {{f}_{{y}}{\left({2},{7}\right)}}\approx
f
y
(
2
,
7
)
≈
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Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity