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why should u care
The = sign
X2 (5)2 = 25 (- 5)2 = 25 An identity, almost, as any number put into this expression will yield the same value.
equivalent expression
The algebraic expression of: -x-1y has the same value as -x-y
If x stays the same the expression stays the same. Since the expression involves negative x, the value of the expression decreases as x increases.
Try it out. 20 - 3 = 17 20 - 4 = 16 The value decreases as x increases.
An equivalent expression.
You can replace a variable with an equal value or expression. Just make sure the same variable always gets the same value or expression.
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why should u care
The value of x is directly proportional to to the value of y.hence when the value of x increases the value of y decrteses and vice verse
++ is an operator that increments the operand. The value of the operand in the expression is incremented first if the ++ is before the operand. The value of the operand in the expression is the same value if the ++ is after the operand.
Equivalent Expression
The = sign
The = sign
X2 (5)2 = 25 (- 5)2 = 25 An identity, almost, as any number put into this expression will yield the same value.