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bogdanovich [222]
2 years ago
14

What expression is equivalent to 3-(-2+5)

Mathematics
1 answer:
maxonik [38]2 years ago
4 0

Answer:

Ok ok, I see. So the answer is -9.

Step-by-step explanation:

We know the expresion is:

-3(-2+5)

We need to distrubute the -3 to what is in the parthese.

When I say distribute, basically you need to multiply the numbers inside the parethese by -3. So we can think of it as:

-3*-2=6

and:

-3*5=-15

Which we can rewrite as:

(6-15)

Subtract 15 from 6 and you get -9:

6-15=-9

Sorry hope this helps!

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Since we determined that both our original functions are linear equation, this means that both our functions will have a constant rate of change.

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If the y-intercept was 0, then the equation of our horizontal line will be:

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And we know that anything multiplied by 0 will give us 0. However, the product of our function is -9x.

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Rather, only our linear equation (not the horizontal line) may have a y-intercept of 0.

D) The rate of change of either f(x) or g(x) must be 0.

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Remember that horizontal lines have a slope of 0. In other words, the rate of change is 0.

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Remember that our horizontal line is <em>not</em> 0. So, the y-intercept of the horizontal line is a number.

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So, our answers are B and D.

And we're done!

Edit: Some (minor) errors in reasoning. Sorry!

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