## mmbuckaroos 4 years ago A student proposed the following method of sketching the solution to a system of two inequalities. “First, I shade the region of points that satisfies the first inequality. Then, I shade the region of points that satisfy the second inequality. The solution consists of all points that have been shaded.” Do you agree? Explain. Support your answer using the system: 5x-3y>1 and 3x+4y<=18

1. 3pwood

If it's a system of inequalities, that means that both inequalities must be satisfied. And the problem has you shading the areas that satisfy one or the other, but not necessarily both. So no, that's not a valid method. The actual region that satisfied the inequality is the bit that gets shaded twice.

2. mmbuckaroos

Ok that's what I thought cause I had that but I was marked wrong...weird

3. mmbuckaroos

Thanks for helping though.

4. 3pwood

Sure thing.

5. amistre64

the word 'and' is of importance there right? ir means what they have in common

6. amistre64

the answer is false; because it includes any solutions from either set; and that would be 'OR'

7. mmbuckaroos

right makes sense I was just checking cause I think the online answer key that checks my quizzes is wrong.... I was like this is an easy question and I still got it wrong! lol I'll talk to my teach about it.

8. amistre64

which of these factors is a physical obstcale to communication; noise, race, and 2 others that were pointless. the correct answer out of the book was 'noise'; but the quiz marked it wrong and said 'race' lol

9. mmbuckaroos

ha ha ya don't you just love when that happens! ha ha NOT.. It's more like are you serious right now lol