Regina Litman

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More simply stated: When 0 < slope < 7/5, c > 0 When slope = 7/5, c = 0 When slope > 7/5 c < 0 When c < 0, slope > 7/5 When c = 0, slope = 7/5 When c > 0, slope < 7/5, which means the slope can be ...

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c can be less than or equal to zero depending on where the line containing the point (5,7) intersections the y axis (the y-intercept). An example of when c = 0 is 7x - 5y = 0 -> y = (7/5) x (slope ...

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Then I must be doing something wrong that I didn't discover even looking over it a second time. Incidentally, I edited my response to show that I subtracted the second one from the first (I had ori...

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3. Be able to write in blank space in app to figure out math problems.

If you are using an Android tablet or an iPhone, you may find the image I just described on your screen. If so, the instructions I gave are the same or similar.

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3. Update: Android 2.4 release (language settings)

This comment is being posted on Tuesday, February 19, 2019, also known as 19 February 2019, 2/19/2019, and 19.2.2019, during the 3:00 p.m. hour U.S. Eastern Standard Time, also known as 1500 hours ...

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3. My Courses in Mobile Apps?

No, you're not missing anything. This is different in the mobile apps. It is not hard to see all of the available Khan Academy courses in one place on the apps, which is not the case for the web si...

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3. Algorithm course missing in the Android app

Wow! I knew that the Computing section in both the Android and iOS apps only contains one course, Computer science, but I never knew until I checked just now that a whole unit, Algorithms, is missi...

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3. Update: Users can adjust birthdates

@Mehmet Teoman Tanriverdi, I suggest you use Report a Problem at the top of this page, to the right of center, to try to get some help on your issue.

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3. Integral Calculus Sequencing of Topics

Here is some updated information. Khan Academy made major revisions to the Calculus Courses in the Summer of 2018. It appears to me that the sequencing issues with Integral Calculus have been corre...

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3. iPad app excuses

I've been a software developer, too, but mainly using a language called COBOL on mainframe computers made by IBM. My interpretation of this page is that there are technological barriers on the iPad...