3 years ago

-2 x 2y if x = -3 and y = -1

Mathematics

1 answer:

pentagon [3]3 years ago

4 0

The answer is 12 because u have to replace it -2(3)2(-1) and -2*3=-6 and 2(-1)=-2 and -6*-2=12

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aleksandr82 [10.1K]

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babymother [125]

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Which of the following equations represents the perpendicular bisector of WX graphed below?

kotykmax [81]

The coordinates of the 2 given points are W(-5, 2), and X(5, -4).

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$\displaystyle{ M_{WX}= (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )= (\frac{-5+5}{2}, \frac{2+(-4)}{2} )=(0, -1).$

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The slope of WX is $\displaystyle{ m= \frac{y_2-y_1}{x_2-x_1}= \frac{2-(-4)}{-5-5}= \frac{6}{-10}= -\frac{3}{5}$ .

Thus, the slope n of the perpendicular line is $\displaystyle{ \frac{5}{3}$ .

The equation of the line with slope $\displaystyle{ n= \frac{5}{3}$ containing the point M(0, -1) is given by:

$\displaystyle{ y-(-1)=\frac{5}{3}(x-0)$

$\displaystyle{ y+1= \frac{5}{3}x$

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Answer: 5x-3y-3=0

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3 years ago

Hi guys! I really need help with this, Maybe if it could be a step by step for each question it says? (Thank You!)

tiny-mole [99]

Answer:

im sorry im not going to read all that because i really dont like reading so im sorry :(

Step-by-step explanation:

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