anonymous
  • anonymous
I need help. Question is in comments
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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anonymous
  • anonymous
Part A: Using the graph above, create a system of inequalities that only contain points D and E in the overlapping shaded regions. Explain how the lines will be graphed and shaded on the coordinate grid above. Part B: Explain how to verify that the points D and E are solutions to the system of inequalities created in Part A. Part C: Timothy can only attend a school in his designated zone. Timothy's zone is defined by y < 3x - 3. Explain how you can identify the schools that Timothy is allowed to attend.
anonymous
  • anonymous
nikato
  • nikato
have you tried it yet?

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anonymous
  • anonymous
I have tried it, I am just awful at system of inequalities ..
anonymous
  • anonymous
Do you do the order pair like ( 0, 4 ) & ( 1, 4 )?
nikato
  • nikato
no. it'll be better to sepearte the x and y
jdoe0001
  • jdoe0001
do you know how to graph an inequality?
nikato
  • nikato
lets look at the x- coordiate. what two numbers are D and E between?
anonymous
  • anonymous
1, 0, -1?
anonymous
  • anonymous
J i think I know how to graph inequalities, is that what i have to do here?
jdoe0001
  • jdoe0001
pretty much, yes
jdoe0001
  • jdoe0001
only thing is youj need the inequalites equations, is all
anonymous
  • anonymous
I'm sorry I am really bad at this .
nikato
  • nikato
|dw:1437088210344:dw| now this is where D and E are
nikato
  • nikato
|dw:1437088327956:dw| and if you look at the x-coordiate, its somewhere between these two numbers, right?
anonymous
  • anonymous
yes
nikato
  • nikato
and how would you write this as an inequaulity?
jdoe0001
  • jdoe0001
notice the primary colors recall that yellow and red make green notice where they go about notice those lines use those lines, or those points given, to get the equations for the inequalities
jdoe0001
  • jdoe0001
notice that if you use those 2 lines and their shaded "true" regions they intersect on the "green zone", that comprises D and E
anonymous
  • anonymous
yes so um
jdoe0001
  • jdoe0001
so... get the equations for those lines first :)
anonymous
  • anonymous
-2+4 < 2+4? I really don't know Im sorry.. Math isn't really my thing ..
jdoe0001
  • jdoe0001
well... have you covered "slopes" yet?
anonymous
  • anonymous
yes but its pretty recent I haven't "mastered," it..
jdoe0001
  • jdoe0001
ok well... let's ... hmmm seee if we can get the lline equations first notice, the equations for lines AF and lines BC are what we're after one sec
Mertsj
  • Mertsj
C is the point (2,1) and B is the point (-4,-2) Find the slope of the line joining those two points.
jdoe0001
  • jdoe0001
\(\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) A&({\color{red}{ -5}}\quad ,&{\color{blue}{ 5}})\quad % (c,d) F&({\color{red}{ 3}}\quad ,&{\color{blue}{ -4}})\\ B&({\color{red}{ -4}}\quad ,&{\color{blue}{ -2}})\quad % (c,d) C&({\color{red}{ 2}}\quad ,&{\color{blue}{ 1}}) \end{array} \\\quad \\ % slope = m slope = {\color{green}{ m}}= \cfrac{rise}{run} \implies \cfrac{{\color{blue}{ y_2}}-{\color{blue}{ y_1}}}{{\color{red}{ x_2}}-{\color{red}{ x_1}}} \\ \quad \\ % point-slope intercept y-{\color{blue}{ y_1}}={\color{green}{ m}}(x-{\color{red}{ x_1}})\qquad \textit{plug in the values and solve for "y"}\\ \qquad \uparrow\\ \textit{point-slope form}\) anyhow... there get the slopes of those, and then get their EQUAtions first so we can get the inequality after
anonymous
  • anonymous
Is there any simpler way of explaining it?
anonymous
  • anonymous
or no? because I could figure it out I would just need time ..
jdoe0001
  • jdoe0001
hmmm doubt it, that's... kinda straightforward methinks
anonymous
  • anonymous
ah okie Well then I better get to researching .-.
jdoe0001
  • jdoe0001
k
anonymous
  • anonymous
I give up :') thanks guys for trying .

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