f.1 maths sequences and functions

2008-08-01 12:55 am

p.17

Multiple choice

Given y is a function of x and y = 2x. What is the value of x when y = 5?

a.2.5
b.5
c.10
d.none of the above

回答 (1)

2008-08-01 1:07 am

✔ 最佳答案

Given y is afunction of x and y = 2x. What is the value of x when y = 5?
y= 2x，5=2x，5/2=x (a)

參考: myself

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