Need help figuring out the intercepts and test for symmetry. y= x^4 - 8x^2 -9

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Q: list the intercepts and test for symmetry.   y2=x+4

A:

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Q: list the intercepts and test for symmetry.     y= -x3 /x2-9

A: Giveny=−x3x2−9

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.