# Make a plot from data [closed]

I have two variables $$x$$ and $$y$$ satisfying, say, $$y^2 + x < 1$$, such that $$0 \le x < 1$$ and $$0\le y<1$$. I want to plot all the points satisfying the inequality $$y^2 + x < 1$$ and also show the parabolic curve $$y^2 + x = 1$$ in the same plot. As a try, I started with table

tb = Table[x^2 + y < 1, {x, 0, 1, 0.2}, {y, 0, 1, 0.2}],

but it did not lead to anything. Could someone kindly help?

## closed as off-topic by MarcoB, JungHwan Min, m_goldberg, corey979, CoolwaterFeb 2 at 17:10

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question arises due to a simple mistake such as a trivial syntax error, incorrect capitalization, spelling mistake, or other typographical error and is unlikely to help any future visitors, or else it is easily found in the documentation." – MarcoB, JungHwan Min, m_goldberg, corey979, Coolwater
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## 1 Answer

RegionPlot[y^2 + x <= 1, {x, 0, 1}, {y, 0, 1}] You may use ContourPlot to draw just the curve:

ContourPlot[y^2 + x == 1, {x, 0, 1}, {y, 0, 1}]