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3 years ago

If f(x)= |4x - 1|, find the value of x if(x) = 7

Mathematics

2 answers:

pychu [463]3 years ago

7 0

X=2 i hope that helps soo yeah

vaieri [72.5K]3 years ago

6 0

F(x) = | 4x - 1 | .....when f(x) = 7
7 = | 4x - 1 |

4x - 1 = 7 -(4x - 1) = 7
4x = 7 + 1 -4x + 1 = 7
4x = 8 -4x = 7 - 1
x = 8/4 -4x = 6
x = 2 x = -6/4
x = - 3/2

solutions are x = -3/2, 2

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