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lisov135 [29]
3 years ago
13

Given the relation x = y 4 − 9 y 2, identify the x- and y- axis intercepts.

Mathematics
1 answer:
Svetlanka [38]3 years ago
5 0

The x-intercepts are (0,0)

The y-intercepts are (0,0),(0,3),(0,-3)

Explanation:

The relation is x=y^{4} -9y^{2}

To find the x-intercept, let us substitute y=0 in the equation x=y^{4} -9y^{2}, we get,

x=(0)^{4} -9(0)^{2} \\x=0

Thus, the x-intercepts are (0,0)

To find the y-intercept, let us substitute x=0 in the equation x=y^{4} -9y^{2}, we get,

0=y^{4}-9 y^{2}

let us switch sides and solving, we get,

\begin{aligned}y^{4}-9 y^{2} &=0 \\y^{2}\left(y^{2}-9\right) &=0 \\y^{2} &=0, y^{2}-9=0\end{aligned}

Taking square root,

y=0 and \begin{aligned}y^{2}-9 &=0 \\y^{2} &=9 \\y &=\pm 3\end{aligned}

Thus, the y-intercepts are (0,0),(0,3),(0,-3)

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