# Trouble figuring out how to check answer-- table and sketch **URL:** \ **Category:** Questions\ **Tags:** sketch\ **Created:** [December 19, 2019, 2:48am UTC](https://cl.desmos.com/t/trouble-figuring-out-how-to-check-answer-table-and-sketch/653 "2019-12-19T02:48:54Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Jeff\_Holcomb](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jeff_holcomb/32/433_2.png) [@Jeff\_Holcomb](https://cl.desmos.com/u/Jeff_Holcomb)\ **Post date:** [December 19, 2019, 2:48am UTC](https://cl.desmos.com/t/trouble-figuring-out-how-to-check-answer-table-and-sketch/653/1 "2019-12-19T02:48:54Z")
I’m working on a “check-in” for the kids to see how they are doing with our intro to slope. On slide 6 I am asking them to give the location of two points which would be on a line with a slope of ¾. I also want them to be able to sketch what is going on (thinking they will draw a line and show a slope triangle similar to one with v-side of 3 and h-side of 4)-- but can’t figure out how to check their answers. Suggestions? > **[Intro to Slope Check-In • Activity by Jeff Holcomb](https://classroom.amplify.com/activity/5dfa761c1bf7f0693f718fd6)** > > The idea of slope has just been introduced, building upon a base of transformational geometry and similar triangles. Our definition of slope depends on the idea of a "slope triangle" and we have established that all slope triangles on the same line,... ---
**Author:** ![Werner\_Pries](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/werner_pries/32/129_2.png) [@Werner\_Pries](https://cl.desmos.com/u/Werner_Pries)\ **Post date:** [December 19, 2019, 11:42am UTC](https://cl.desmos.com/t/trouble-figuring-out-how-to-check-answer-table-and-sketch/653/2 "2019-12-19T11:42:15Z")
It seems you mistakenly used variables in the graph script rather than number sinks. Once that is corrected, you should check your slope value “s” in the calculator against the desired value (3/4). I’ve modified your slide #6 to illustrate. > **[\[Demo\] Intro to Slope Check-In • Activity Builder by Desmos](https://teacher.desmos.com/activitybuilder/custom/5dfb5ddf7d6e3f6981641e85)** > > The idea of slope has just been introduced, building upon a base of transformational geometry and similar triangles. Our definition of slope depends on the idea of a "slope triangle" and we have established that all slope triangles on the same line,... ---
**Author:** ![Jeff\_Holcomb](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jeff_holcomb/32/433_2.png) [@Jeff\_Holcomb](https://cl.desmos.com/u/Jeff_Holcomb)\ **Post date:** [December 19, 2019, 7:26pm UTC](https://cl.desmos.com/t/trouble-figuring-out-how-to-check-answer-table-and-sketch/653/3 "2019-12-19T19:26:57Z")
I think I am still running into problems with wanting the component to be a sketch and not a graph. It seems that the solution you posted works great for a graph but when I bring it into a graph in a sketch component then it does not work. I very possibly am just missing something though! ---
**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\ **Post date:** [December 29, 2019, 5:26am UTC](https://cl.desmos.com/t/trouble-figuring-out-how-to-check-answer-table-and-sketch/653/4 "2019-12-29T05:26:14Z")
If you want to perform calculations in a sketch and then pull the numbers out of it you’re going to run into errors. No number source in sketch. If you can perform the necessary calculations in the script that will work fine, otherwise performing behind the scenes calculations in another graph and then only injecting numbers _into_ the sketch works just as fine. In the example provided by Werner, it looks like the only number being pulled from the graph is for correctness. If thats the only thing you would we pulling _out_ of the sketch component you can use a quick simpleFunction to perform the calculation without the need to reference numbers inside the sketch.