Given the function f(x)= 4 lx - 5 l +3 for what values of x is f(x) =15

asked Jun 27, 2020 132k views

3 votes

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2 votes

Explanation:

Given that
f(x)=4|x-5|+3

We need the values of
for which
.

So,

15=4|x-5|+3

12=4|x-5|

|x-5|=3

If
$x\geq 5,$

$x-5=3\\x=8$

If
x< 5,

$5-x=3\\x=2$

So,
2,8 are the solutions

Bmdelacruz answered Jul 2, 2020

5.4k points

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