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alissamakeeva
@alissamakeeva
August 2022
2
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60 БАЛЛОВ!!!!! СРОЧНО!!!!!!!!!
6 НОМЕР!!
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m11m
Verified answer
!!!!!!!!!!!!!!!!!!!!!!
0 votes
Thanks 1
alissamakeeva
спасибо :")
zhenyaM2002
Verified answer
№6.
у = -1,5х + 1 (прямая)
1)
х = -4 ⇒ у = -1,5 * (-4) + 1 = 7 ⇒ т.А (-4;7)
х=0 ⇒ у= -1,5*0+1 = 1 ⇒ т.В (0;1)
х=2 ⇒ у = -1,5 * 2 + 1 = - 2 ⇒ т.С (2; - 2)
2)
у= -1 ⇒ -1 = - 1,5х + 1 ⇒ 1,5х =1+1 ⇒ х =2/1,5 = 4/3 =1 ¹/₃ ⇒т.D (1¹/₃; -1)
у= 4 ⇒ 4 = -1,5х + 1 ⇒ 1,5х = 1-4 ⇒ х = -3/1,5 = - 2 ⇒ т.Е (-2; 4)
3) y > 1
- 1,5х + 1 > 1
-1.5х > 1 - 1
-1.5x > 0
1.5x < 0
x<0
х∈ (-∞ ; 0 )
4) x = 0 ⇒ y = 1 ⇒ x> 0 ⇒ y∈ ( -∞; 1 )
0 votes
Thanks 1
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Answers & Comments
Verified answer
!!!!!!!!!!!!!!!!!!!!!!Verified answer
№6.у = -1,5х + 1 (прямая)
1)
х = -4 ⇒ у = -1,5 * (-4) + 1 = 7 ⇒ т.А (-4;7)
х=0 ⇒ у= -1,5*0+1 = 1 ⇒ т.В (0;1)
х=2 ⇒ у = -1,5 * 2 + 1 = - 2 ⇒ т.С (2; - 2)
2)
у= -1 ⇒ -1 = - 1,5х + 1 ⇒ 1,5х =1+1 ⇒ х =2/1,5 = 4/3 =1 ¹/₃ ⇒т.D (1¹/₃; -1)
у= 4 ⇒ 4 = -1,5х + 1 ⇒ 1,5х = 1-4 ⇒ х = -3/1,5 = - 2 ⇒ т.Е (-2; 4)
3) y > 1
- 1,5х + 1 > 1
-1.5х > 1 - 1
-1.5x > 0
1.5x < 0
x<0
х∈ (-∞ ; 0 )
4) x = 0 ⇒ y = 1 ⇒ x> 0 ⇒ y∈ ( -∞; 1 )