Which of the expressions have positive values and which have negative values 7-(-4) -3+(-2) 5-8 -10+12

Mathematics

1 answer:

barxatty [35]4 years ago

4 0

Answer:

Positive: 7-(-4) and -10+12

Negative -3+(-2) and 5-8

Step-by-step explanation:

Addition and subtraction rules:

2 negatives make a positive

A bigger positive number added to a smaller negative number is positive

A negative plus a negative is a negative.

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Vinvika [58]

ANSWER

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EXPLANATION

The given function is

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When we plug in x=3 into this function, we obtain,

$f(3) = \frac{0}{0}$

This means that the function is discontinuous at x=3.

We need to simplify the function to obtain,

$f(x) = \frac{(x - 3)(x + 3)}{(x - 3)}$

This implies that,

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The graph this function is a straight line that is continuous everywhere.

To graph

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we draw the graph of

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See diagram in attachment.

Hence the coordinates of hole is

$(3, \infty )$

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