3 years ago

How is locating -1.5 on a number line the same as locating 1.5 on a number line? How is it different?

1 answer:

4 0

It’s the same in the sense that 1.5 and -1.5 are the same distance away from 0 - they have he same *absolute value*. It’s different in *where* you look. 1.5 is 1.5 to the *right* of 0, while -1.5 is 1.5 to the *left* of zero.

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Y= -27(x+4)³+1 the real zero(s) is (are)

rjkz [21]

$\bf y=-27(x+4)^3+1\implies 0=-27(x+4)^3+1
\\\\\\
-1=-27(x+4)^3\implies \cfrac{-1}{-27}=(x+4)^3\implies \cfrac{1}{27}=(x+4)^3
\\\\\\
\sqrt[3]{\cfrac{1}{27}}=x+4\implies \cfrac{\sqrt[3]{1}}{\sqrt[3]{27}}=x+4\implies \cfrac{1}{3}=x+4\implies \cfrac{1}{3}-4=x
\\\\\\
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