
Funcions elementals. Rectes
Presentation
•
Mathematics
•
10th Grade
•
Medium
Elisa Bet
Used 17+ times
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4 Slides • 6 Questions
1
Funcions elementals
Rectes
2
Equació d'una recta a partir de dos punts
A (1, 2) B (3, 8)
Calcular el pendent: m = 3−18−2 = 3 ⟶ y = 3x + n
Calcular n (amb A): 2 = 3 · 1 + n; n = -1 ⟹ y = 3x - 1
3
Multiple Choice
Quina és l'equació de la recta que passa per (0, 0) i ( 3, 6)?
y=2x
y = 21x
4
Multiple Choice
Quina és l'equació de la recta que passa per (-2, 2) i ( 0, 1)?
y=−21⋅ x+1
y = 21⋅ x +3
5
Equació a partir d'un punt i el pendent
A (3, 7) ; m = -2
y = -2x + n
Calcular la n: 7 = -2 · 3 + n; n = 7 + 6 = 13
y = -2x + 13
6
Multiple Choice
Equació de la recta que passa per (-4, 2) i té un pendent m = 5
y=5x+22
y = 5x−14
7
Multiple Choice
Equació de la recta que passa per (-6, 2) i té un pendent m = -3
y=−3x+20
y = −3x−16
8
Equació a partir d'un gràfic
Identificar dos punts
A (0, 2) i B (4, 0)
Calcular m i n
m=−42=−21 i n = 2
y =−21 x +2
9
Multiple Choice
Equació de la recta. Identifica un punt
(0, 0)
(2, 2)
(-1, 1)
10
Multiple Choice
Equació de la recta
y = 2x - 2
y = -2x + 2
y = 2x
Funcions elementals
Rectes
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