Plot[Piecewise[{{9/log 10, x < 10}, {10, 10 < x < 100}, {20, x > 100}}], {x, 1, 200}]Plot[Piecewise[{{9/log 10, x < 10}, {10, 10 < x < 100}, {20, x > 100}}], {x, 1, 200}]

• Natural Language
• Math Input