拜託!能教我嗎?算x軸座標和y軸座標?

2016-09-27 11:43 am
座標

回答 (2)

2016-09-28 10:35 am
f(x)=3/4-3
f(x)=y
sol
y=3/4-3
x=0,y=-3
y=0,x=4
A:[4,-3]
2016-09-27 12:25 pm
把X帶0,可得與Y軸交點為(0.-3)
把Y帶0,可得與X軸交點為(4.0)


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