sat if the figure above,PQRS is a square.

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sat if the figure above,PQRS is a square.

sat if the figure above,PQRS is a square.
sat if the figure above,PQRS is a square.

sat if the figure above,PQRS is a square.
要求出 a 的值,首先要列出函数 y = ax(平方) 中的 y 和 x 的值.步骤如下:
1.QPSR是正方形,且面积为64,那么QP=PS=8,QP的长度就是 y 的值,即 y=8.
2.PS = 8,所以OS = 4,即 x = 4.
3.所以该函数是 8 = a x 4的平方,解这个方程,得 a = 0.5

PQRS是64
所以正方形边长是8
OS=4=x
RS=8=ax^2=a*16
a=1/2

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