how to draw a quadratic equation
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how to draw this quadratic equation, when I tried to draw it it gives me a linear draw :(
syms x
y=(-53.68/(2*230))*((x).^2)+500.0089*x+55
figure
fplot(y,[-55 55])
grid
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回答 (1 件)
Star Strider
2021 年 5 月 3 日
It is definitely close to linear in the region you are plotting it.
To plot it and see its quadratic shape, find the inflection point and use that as the centre of the plot range.
Try this —
syms x
y=(-53.68/(2*230))*((x).^2)+500.0089*x+55
y_inflpt = vpasolve(diff(y)==0)
figure
fplot(y,[-55 55]+double(y_inflpt))
grid
.
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