3 years ago

1

Mathematics

1 answer:

Vladimir79 [104]3 years ago

8 0

Answer:

Step-by-step explanation:

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3. A line goes through the points (3,4) and (-3,6).

Galina-37 [17]

Answer:

Part a) The slope is $m=-\frac{1}{3}$

Part b) The equation in point slope form is $y-4=-\frac{1}{3}(x-3)$

Part c) The equation in slope-intercept form is $y=-\frac{1}{3}x+5$

Step-by-step explanation:

we have the points (3,4) and (-3,6)

Part a) What is the slope of the line?

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the given points

$m=\frac{6-4}{-3-3}$

$m=\frac{2}{-6}$

$m=-\frac{1}{3}$

Part b) Write the equation of the line in point-slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{1}{3}$

$point\ (3,4)$

substitute

$y-4=-\frac{1}{3}(x-3)$ ---> equation in point slope form

Part c) Write the equation of the line in slope-intercept form

$y=mx+b$

we have

$y-4=-\frac{1}{3}(x-3)$

Isolate the variable y

distribute right side

$y-4=-\frac{1}{3}x+1$

Adds 4 both sides

$y=-\frac{1}{3}x+1+4$

$y=-\frac{1}{3}x+5$ ---> equation in slope intercept form

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3 years ago

Hat is the percent of decrease on an item that went from $25 to $20?

HACTEHA [7]

Your answer is 20% :)

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3 years ago

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What does point A represent on the graph?

OverLord2011 [107]

Answer:

Do you have a picture

Step-by-step explanation:

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3 years ago

Write in terms of i . simplify your answer as much as possible. −99

Sonbull [250]

I^2 = -1
so,
-99 = -1*99 = i^2*99 = 99i^2

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3 years ago

12. A point is blank<br> from two objects if it is the same distance from the objects. (1 point)

defon

Answer:

Equidistant is your answer.

Step-by-step explanation:

Hope i have helped you!

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3 years ago