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3 years ago

What value of m will make this expression equal to 0?

Mathematics

2 answers:

Svetllana [295]3 years ago

8 0

Answer:

-2.25

Step-by-step explanation:

The only way the expression can equal zero is if the numerator is zero.

The numerator is the product of 5 and the expression m + 2.25

A product is equal to zero if one of the factors equals zero.

5 is obviously not equal to zero, so the only way the product of 5 and m + 2.25 can equal zero is if the factor m + 2.25 equals zero.

We set m + 2.25 equal to zero and solve for m.

m + 2.25 = 0

Subtract 2.25 from both sides.

m = -2.25

If you add -2.25 to 2.25, you get zero. Zero times 5 equals zero. That meakes the expression equal to zero.

Answer: -2.25

Verdich [7]3 years ago

7 0

Answer:

−2.25

Step-by-step explanation:

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Which phrase best descubes the translation from the graph y = (x - 5)2 + 7 to the graph of y = (x + 1)2 - 2?

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Answer:

"6 units left and 9 units down"

Step-by-step explanation:

Suppose a function is given in this form:

$y=(x-a)^2+b$

This is the parent function y = x^2

translated a units right (left if there was a + before a)
translated b units up (down if there was a - before b)

Now, to go from $y=(x-5)^2+7$ to $y= (x+1)^2-2$ , we can see that:

first function is 5 units right and 2nd one is 1 unit left, so there is a horizontal translation of 6 units left
first function is 7 units above and 2nd one is 2 units down, so there is a vertical translation of 9 units down

Thus, "6 units left and 9 units down" is the transformation(translation).

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