maths graphing equations(10)

2008-02-05 12:24 am
rewrite each of the following equations so that you could enter them into the graphing calculator. In other words, solvo for y.

a) x-3(y+2)=6
b)6x-1/y -3=2
c)x^2+(y-3)^2=4



help me plz>

回答 (1)

2008-02-05 12:33 am
✔ 最佳答案
a)
x-3(y+2)=6
x-3y-6=6
x-3y=12
3y=x-12
y=(x-12)/3

b)
6x-1/y -3=2
6x-1=2(y-3)
6x-1=2y-6
2y=6x+5
y=(6x+5)/2

c)
x^2+(y-3)^2=4
(y-3)^2=4-x^2
y-3=±√(4-x^2)
y=3±√(4-x^2)


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