´
Equations Lin´eaires (A)
Utilisez les points donn´es pour d´eterminer la pente `
a l’aide de
y2–y1xx–x1
D´eterminer la pente `a l’aide de b = y − mx. ´Ecrivez l’´equation sous forme y = mx + b. 1. Points: (9, 6) (2, −6) 2. Points: (0, 6) (−7, 2) 3. Points: (3, −8) (3, −1) 4. Points: (−6, 4) (2, 4) 5. Points: (−9, −5) (6, −9) 6. Points: (−3, −6) (−7, −3) 7. Points: (−2, −7) (9, 5) 8. Points: (2, 1) (−1, 4) 9. Points: (−8, −2) (−6, 0) 10. Points: (7, −5) (0, 7) MathsLibres.com
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Equations Lin´eaires (A) R´eponses
Utilisez les points donn´es pour d´eterminer la pente `
a l’aide de
y2–y1xx–x1
D´eterminer la pente `a l’aide de b = y − mx. ´Ecrivez l’´equation sous forme y = mx + b. 1. Points: (9, 6) (2, −6) m = −6−62−9 = −12−7 = 127 b = 6 − 127 (9) = −937 y = 127 x − 937 2. Points: (0, 6) (−7, 2) m = −7−02−6 = −4−7 = 47 b = 6 − 47(0) = 6 y = 47x + 6 3. Points: (3, −8) (3, −1) m = −1−(−8)3−3 = 70 = undef ined x = 3 4. Points: (−6, 4) (2, 4) m = 2−(−6)4−4 = 08 = 0 b = 4 − 0(−6) = 4 y = 4 5. Points: (−9, −5) (6, −9) m = −9−(−5)6−(−9) = −415 = −154 b = −5 − (−154 (−9)) = −725 y = −154 x − 725 6. Points: (−3, −6) (−7, −3) m = −3−(−6)−7−(−3) = −43 = −34 b = −6 − (−34(−3)) = −814 y = −34x − 814 7. Points: (−2, −7) (9, 5) m = 5−(−7)9−(−2) = 1211 = 1211 b = −7 − 1211(−2) = −4119 y = 1211x − 4119 8. Points: (2, 1) (−1, 4) m = −1−24−1 = −33 = −1 b = 1 − (−1(2)) = 3 y = −x + 3 9. Points: (−8, −2) (−6, 0) m = −6−(−8)0−(−2) = 22 = 1 b = −2 − 1(−8) = 6 y = x + 6 10. Points: (7, −5) (0, 7) m = 7−(−5)0−7 = −712 = −127 b = −5 − (−127 (7)) = 7 y = −127 x + 7 MathsLibres.com
