Correct Ordered Pair

Questions
1

I love Desmos and am new to CL, trying to navigate my way around.

I have a problem where the students are given two linear equation that are graphed. They need to tell the point of intersection (solution to systems of equations). I have the input set so that it appears on the graph when the enter it submit it, but I cannot, for the life of me, figure out how to get it to read as a correct answer for the dashboard.

y = 1/2x + 4
y = 3/4 - 1

Solution is (4,2)
If the students type in (4,2), how do I get it to read this as the answer?

2

It seems that a common problem is setting the graph to readOnly, but you have to use parseOrderedPair and .x and .y to read the answer.

xCoordinate=parseOrderedPair(input.latex).x
yCoordinate=parseOrderedPair(input.latex).y

then use those to check. You could set variables like I just did or write one when-otherwise correctness check.

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