SOLUTION: When the vaule b is less than 8 a is negative. please explain this answer. a=1/2b-4 show work, thanks need help

Question 3586: When the vaule b is less than 8 a is negative. please explain this answer.
a=1/2b-4 show work, thanks need help
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
your equation should be written as first. What you wrote is misleading.

if a was zero... what value of b is required to give this? Let's find out:

b = 8

So, since this equation is a straight line (if plotted), see here:

any value of b less than 8 will make a negative.

Jon.

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