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brilliants [131]
3 years ago
7

What’s the answer to this?

Mathematics
1 answer:
babymother [125]3 years ago
8 0

Answer:

○ \displaystyle x > -3 \\ 5y ≥ -4x - 10

Step-by-step explanation:

This system of inequalities has a shared portion at the origin, so we can easily jump to using the zero-interval test [test point (0, 0)] to verify the inequalities as false or true:

\displaystyle 5[0] ≥ -4[0] - 10 → 0 ≥ -10☑

\displaystyle 0 > -3☑

Plus, the top inequality has a <em>dashed </em><em>line</em><em> </em>["<" or ">"], and the bottom inequality has a solid line, so this must have an equivalence line underneath each inequality symbol ["≤" or "≥"].

** Hold on though! Although it looks obvious about what the second inequality is, we need to double-check and make sure anyway, just to be on the safe side ☺:

\displaystyle \frac{5y}{5} ≥ \frac{-4x - 10}{5} → y ≥ -\frac{4}{5}x - 2

From the y-intercept of \displaystyle [0, -2],we do \displaystyle \frac{rise}{run}by either moving four blocks <em>north</em><em> </em>over five blocks <em>west</em><em> </em>or four blocks <em>south</em><em> </em>over five blocks <em>east</em><em> </em>[<em>west</em> and <em>south</em> are negatives]. This IS what our solid graph looks like, so we are correct!

So, from all what was explained, you have your answer.

I am joyous to assist you anytime.

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