pls help asap i need this in 30 mins pls heeeeeellllpppp?
回答 (2)
2020-04-15 3:29 pm
A.
1.
Coordinates (-1, 2), (-4, -4)
2.
Slope = [2 - (-4)]/[-1 - (-4)] = 2
3.
y-intercept = 4
4.
y = 2x + 4
5.
y + 1 = 2(x - 2)
OR: y + 4 = 2(x + 4)
====
B.
1.
Coordinates (2, 1), (-3, 1)
2.
Slope = [1 - 1]/[2 - (-3)] = 0
3.
y-intercept = 1
4.
y = 0x + 1
i.e. y = 1
5.
y + 1 = 0(x - 2), i.e. y + 1 = 0
OR: y + 1 = 0(x + 3), i.e. y + 1 = 0
1.
Coordinates (-1, 2), (-4, -4)
2.
Slope = [2 - (-4)]/[-1 - (-4)] = 2
3.
y-intercept = 4
4.
y = 2x + 4
5.
y + 1 = 2(x - 2)
OR: y + 4 = 2(x + 4)
====
B.
1.
Coordinates (2, 1), (-3, 1)
2.
Slope = [1 - 1]/[2 - (-3)] = 0
3.
y-intercept = 1
4.
y = 0x + 1
i.e. y = 1
5.
y + 1 = 0(x - 2), i.e. y + 1 = 0
OR: y + 1 = 0(x + 3), i.e. y + 1 = 0
收錄日期: 2021-05-01 22:36:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200415064755AAbwnfC