<item ident="X1-6783" title="X1 | Linear ODE systems | ver. 6783"> <itemmetadata> <qtimetadata> <qtimetadatafield> <fieldlabel>question_type</fieldlabel> <fieldentry>essay_question</fieldentry> </qtimetadatafield> </qtimetadata> </itemmetadata> <presentation> <material> <mattextxml> <div class="exercise-statement"> <p> <strong>X1.</strong> </p> <p>Find the solution to the given system of IVPs.</p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5" alt="0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5" title="0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5" data-latex="0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5"/> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8" alt="9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8" title="9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8" data-latex="9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8"/> </p> </div> </mattextxml> <mattext texttype="text/html"><div class="exercise-statement"> <p> <strong>X1.</strong> </p> <p>Find the solution to the given system of IVPs.</p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?0%20=%20-4%20%5C,%20%7Bx%7D%20-%204%20%5C,%20%7By%7D%20-%20%7Bx'%7D%20%5Chspace%7B2em%7Dx(0)=%20-5" alt="0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5" title="0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5" data-latex="0 = -4 \, {x} - 4 \, {y} - {x'} \hspace{2em}x(0)= -5"> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?9%20%5C,%20%7Bx%7D%20+%20%7By'%7D%20=%20%7By%7D%20%5Chspace%7B2em%7Dx(0)=%208" alt="9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8" title="9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8" data-latex="9 \, {x} + {y'} = {y} \hspace{2em}x(0)= 8"> </p> </div> </mattext> </material> <response_str ident="response1" rcardinality="Single"> <render_fib> <response_label ident="answer1" rshuffle="No"/> </render_fib> </response_str> </presentation> <itemfeedback ident="general_fb"> <flow_mat> <material> <mattextxml> <div class="exercise-answer"> <h4>Partial Answer:</h4> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" alt="x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" title="x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" data-latex="x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}"/> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" alt="y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" title="y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" data-latex="y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}"/> </p> </div> </mattextxml> <mattext texttype="text/html"><div class="exercise-answer"> <h4>Partial Answer:</h4> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?x=%20-4%20%5C,%20e%5E%7B%5Cleft(5%20%5C,%20t%5Cright)%7D%20-%20e%5E%7B%5Cleft(-8%20%5C,%20t%5Cright)%7D" alt="x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" title="x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" data-latex="x= -4 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}"> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?y=%209%20%5C,%20e%5E%7B%5Cleft(5%20%5C,%20t%5Cright)%7D%20-%20e%5E%7B%5Cleft(-8%20%5C,%20t%5Cright)%7D" alt="y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" title="y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}" data-latex="y= 9 \, e^{\left(5 \, t\right)} - e^{\left(-8 \, t\right)}"> </p> </div> </mattext> </material> </flow_mat> </itemfeedback> </item>