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Mathematics 21 Online
OpenStudy (anonymous):

algebra

OpenStudy (anonymous):

OpenStudy (mathmale):

Happy to help with this. However, I'd really like to know what you've done so far, and what questions you may have.

OpenStudy (mathmale):

You are given two inequalities involving the variable f. Why not simplify each, separately?

OpenStudy (anonymous):

do u know how to start solving it?

OpenStudy (anonymous):

so you need to put f on one side of the equation for each of the inequalities

OpenStudy (anonymous):

f+8≤3 -8≤-8 --------- f≤-5 f+9≥-4 -9≥-9 --------- f≥-13

OpenStudy (anonymous):

-5≥f≥-13

Directrix (directrix):

@EKKERKING In interval notation: [ -13, -5]

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