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2 years ago

9

Explain the rule for multiplying two negative integers. Use a number line or algebra tiles to illustrate three examples. Make a

sketch of your work.

1 answer:

Blizzard [7]2 years ago

4 0

Multiplying two negative numbers would always give you a positive product

Example 1) -2 * -1 = 2

Example 2) -5 * -4 = 20

Example 3) -10 * -3 = 30

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Complete the equation of the line through (-10,-7)(−10,−7)(, minus, 10, comma, minus, 7, )and (-5,-9)(−5,−9)(, minus, 5, comma,

Tanzania [10]

Answer:

$y = -\frac{2}{5}\cdot x - 11$

Step-by-step explanation:

First, the slope is determined by using the following expression:

$m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m = \frac{-7-(-9)}{-10 - (-5)}$

$m = -\frac{2}{5}$

The y-intercept is found by using the line equation, the slope and one point:

$y = m \cdot x +b$

$b = y - m\cdot x$

$b = -7 - \left(-\frac{2}{5}\right)\cdot (-10)$

$b = -11$

The equation of the line is:

$y = -\frac{2}{5}\cdot x - 11$

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2 years ago

Are 5(2x-y) and 15x-5y equivalent expressions?

krek1111 [17]

No, they are not equivalent.

5(2x - y) = 10x - 5y and it is not equal to 15x - 5y.

(using distribution property)

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2 years ago

You are determining the mass of an object using a triple beam balance. When the pointer is lined up with the zero mark, the ride

Molodets [167]

328 grams is the mass.

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2 years ago

How is a tangent different from a chord

Akimi4 [234]

In a tangent segment, no part of it is in the interior of the circle. with a secant, there is a part in the interior called the chord. hope it helps
if you need help with anything else just ask me

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2 years ago

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Find an equation for the line through (-7,7) and parallel to y=2x-3

kaheart [24]

The answer would be B because a line is a parallel as long as the mx remains the same

Hope this helped.

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2 years ago