Posted by **John** on Friday, December 27, 2013 at 7:25pm.

A line has y-intercept (0, 3) and is perpendicular to the line 2x + y = 3. Find the x-intercept of the line.

- Math -
**Steve**, Friday, December 27, 2013 at 8:09pm
since the given line has slope -2, we want slope 1/2.

So, y = x/2 + b

Since when x=0, y=3, b=3 and

y = x/2 + 3

So, when y=0, x=?

- Math -
**John**, Friday, December 27, 2013 at 9:14pm
So would the answer be 6 or 3 then

- Math -
**Reiny**, Friday, December 27, 2013 at 9:27pm
Neither, it would be -6

taking Steve's equation of y= x/2 + 3 , and letting y = 0

0 = x/2 + 3

-3 = x/2

-6 = x

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