A drinking straw is 1 cm in diameter and 15 cm long. What is the volume of the straw?
1 answer:
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Answer:
See explanation
Step-by-step explanation:
1. Draw the dotted line y=-x. This line must be dotted, because the inequality y<-x is with sign < (without notion "or equal to"). Then shade the region that contains all values of y that are less than -x (bottom part that is shaded in red on the attached diagram).
2. Draw the solid line y=x-2. This line must be solid, because the inequality y≤x-2 is with sign ≤ (with notion "or equal to"). Then shade the region that contains all values of y that are less or equal to x-2 (bottom part that is shaded in blue on the attached diagram).
3. Their common part (region that is shaded in both red and blue colors) represents both inequalities.
