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which of the following equations represent linear functions? A. x^2+y^2=1 B. x+y=14 C. y=6/x D. y=3(2x+1)

User Wei Lin
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1 Answer

5 votes

A linear function has this form:


y=ax+b

Notice that option A cannot be written in this form, because x and y have a square power. If you clear y you'll get:


y=\sqrt[]{1-x^2}

Option B you can write it in the form of a linear equation:


y=14-x

For this option, a = -1 and b = 14

Option C cannot be written in this form:


y=(6)/(x)

And option D can be written like that:


y=6x+3

Here, a=6 and b=3.

So, options B and D are linear equations

User Farkie
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