Bonjour,
bonjour
g (x) = - 3 x + 7
f ( - 2 ) = - 2 * - 3 + 7 = 6 + 7 = 13
f ( 3) = 3 * - 3 + 7 = - 9 + 7 = - 2
- 3 x + 7 = 0
- 3 x = - 7
x = 7/3
f ( 7/3) = 0
- 3 x + 7 = 25
- 3 x = 25 - 7
- 3 x = 18
x = - 6
f ( - 6) = 25
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Verified answer
Bonjour,
Verified answer
bonjour
g (x) = - 3 x + 7
f ( - 2 ) = - 2 * - 3 + 7 = 6 + 7 = 13
f ( 3) = 3 * - 3 + 7 = - 9 + 7 = - 2
- 3 x + 7 = 0
- 3 x = - 7
x = 7/3
f ( 7/3) = 0
- 3 x + 7 = 25
- 3 x = 25 - 7
- 3 x = 18
x = - 6
f ( - 6) = 25