f ( 4 ) = 9 / 5 = 1.8 | Desmos

Expression 5: "b" equals negative 3 "a"

equals

0.9

5

Expression 6: "c" equals negative 10 "a"

equals

3

6

Expression 7: "x" Subscript, 1 , Baseline equals StartFraction, negative "b" plus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFraction

equals

negative 2

7

Expression 8: "x" Subscript, 2 , Baseline equals StartFraction, negative "b" minus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFraction

equals

5

8

Expression 9: "f" left parenthesis, 0 , right parenthesis

equals

3

9

Points

10

15

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