<p>I'm not sure how to do this...absolute value problems confuse me :S. so any help would be greatly appreciated! thanks</p>
<p>BB2 pg. 467 #14</p>
<p>f(x) = |3x-17|
For the function defined above, what is one possible value of a for which f(a) <a ?</p>
<p>The easiest way is to probably just plug in numbers. took me 30 seconds to see that 7 works.</p>
<p>5 can also work.</p>
<p>Goal: Plug in an A value for numbers into the equation and see if the f(x) result will be less than the number you chose for substitution.</p>
<p>l 3(5) - 17 l = 15 - 17 = -2 Absolute Value of -2 is +2.</p>
<p>2 < 5.</p>
<p>5 works. </p>
<p>or like RAlec said… 7 too.</p>
<p>Use two inequalities to solve this problem.
3a - 17 < a
2a < 17
a < 8.5</p>
<p>3(a) - 17 > -a
4a > 17
a > 4.25</p>
<p>Plugging numbers is easier.</p>