Bonsoir,
1) f(6) = -3/19 × 6 + 3 = -18/19 + 57/19 = 39/19
2) f(x)=0 ⇒ -3/19 × x + 3 = 0
⇒ -3x/19 = -3
⇒ x = 19
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Bonsoir,
1) f(6) = -3/19 × 6 + 3 = -18/19 + 57/19 = 39/19
2) f(x)=0 ⇒ -3/19 × x + 3 = 0
⇒ -3x/19 = -3
⇒ x = 19