{"action":"closed","issue":{"url":"https://api.github.com/repos/phetsims/graphing-lines/issues/43","labels_url":"https://api.github.com/repos/phetsims/graphing-lines/issues/43/labels{/name}","comments_url":"https://api.github.com/repos/phetsims/graphing-lines/issues/43/comments","events_url":"https://api.github.com/repos/phetsims/graphing-lines/issues/43/events","html_url":"https://github.com/phetsims/graphing-lines/issues/43","id":57347880,"number":43,"title":"add a checkbox to remove gridlines","user":{"login":"amanda-phet","id":7852916,"avatar_url":"https://avatars.githubusercontent.com/u/7852916?v=3","gravatar_id":"","url":"https://api.github.com/users/amanda-phet","html_url":"https://github.com/amanda-phet","followers_url":"https://api.github.com/users/amanda-phet/followers","following_url":"https://api.github.com/users/amanda-phet/following{/other_user}","gists_url":"https://api.github.com/users/amanda-phet/gists{/gist_id}","starred_url":"https://api.github.com/users/amanda-phet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/amanda-phet/subscriptions","organizations_url":"https://api.github.com/users/amanda-phet/orgs","repos_url":"https://api.github.com/users/amanda-phet/repos","events_url":"https://api.github.com/users/amanda-phet/events{/privacy}","received_events_url":"https://api.github.com/users/amanda-phet/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/phetsims/graphing-lines/labels/enhancement","name":"enhancement","color":"84b6eb"},{"url":"https://api.github.com/repos/phetsims/graphing-lines/labels/Summer%202015%20redeploy","name":"Summer 2015 redeploy","color":"5319e7"}],"state":"closed","locked":false,"assignee":{"login":"ariel-phet","id":4051174,"avatar_url":"https://avatars.githubusercontent.com/u/4051174?v=3","gravatar_id":"","url":"https://api.github.com/users/ariel-phet","html_url":"https://github.com/ariel-phet","followers_url":"https://api.github.com/users/ariel-phet/followers","following_url":"https://api.github.com/users/ariel-phet/following{/other_user}","gists_url":"https://api.github.com/users/ariel-phet/gists{/gist_id}","starred_url":"https://api.github.com/users/ariel-phet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ariel-phet/subscriptions","organizations_url":"https://api.github.com/users/ariel-phet/orgs","repos_url":"https://api.github.com/users/ariel-phet/repos","events_url":"https://api.github.com/users/ariel-phet/events{/privacy}","received_events_url":"https://api.github.com/users/ariel-phet/received_events","type":"User","site_admin":false},"milestone":null,"comments":12,"created_at":"2015-02-11T17:25:00Z","updated_at":"2015-08-31T04:09:25Z","closed_at":"2015-08-31T04:09:25Z","body":"Area Builder currently has a checkbox to add/remove gridlines. \r\n![screen shot 2015-02-11 at 10 23 45 am](https://cloud.githubusercontent.com/assets/7852916/6152163/36aa0310-b1d8-11e4-8e57-0d034323a547.png)\r\n\r\nI was thinking about Graphing Lines and thought that could be a nice feature. It is important to think of slope not only in terms of \"rise over run\" but also the steepness of a line. If the gridlines are invisible, we can have conversations about slope that do not rely on counting units and can speak more generally about steep, not steep, positive, negative, etc. "}}