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Citrus2011 [14]
3 years ago
10

(-1,-2) rotation 180 about the origin

Mathematics
2 answers:
amid [387]3 years ago
6 0

Answer:

(1,2)

Step-by-step explanation:

It goes from the (-,-) quadrant (forgot specific quadrant number) to (+,+) quadrant

mylen [45]3 years ago
4 0

Answer:

(1,2)

Step-by-step explanation:

The rule to rotate any coordinate around the origin is

x,y -->  -x,-y

-1,-2 would become 1,2

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Given the points (5, 2) and (7, 10) find the slope of the line going through the two points . Now write the point-slope form of
drek231 [11]

Step-by-step explanation:

the slope of a line is specified as the ratio y/x. that indicates how many units y changes, when x changes a certain amount of units.

so, going e.g. from (5, 2) to (7, 10), x changes from 5 to 7 = +2 units. and y changes from 2 to 10 = +8 units.

so, the slope y/x = m = 8/2 = 4

the point-slope form is

y - y1 = m(x - x1)

m = slope

(x1, y1) = coordinates of one point on the line. let's pick the first point (5, 2).

y - 2 = 4(x - 5)

or then fully simplified (leading to the slope- intercept form) :

y - 2 = 4x - 20

y = 4x - 18

for question 2 we do the same thing for (4, -2) and (0, -5).

x changes from 4 to 0, so, -4 units.

y changes from -2 to -5, so, -3 units.

slope = y/x = m = -3/-4 = 3/4

since there is a 0 included, let's use (0, -5) as point for the point-slope form

y - -5 = 3/4(x - 0)

or

y + 5 = 3/4 x

so, the last option is correct.

3 0
2 years ago
HALP ME PLEASE VERY IMPORTANT ASSIGNMENT!!!
german

Answer:

wut?

Step-by-step explanation:

i dont know how to explain this

3 0
2 years ago
Read 2 more answers
Worth a lot of points
Dima020 [189]
6. Is 6MPH because 12M / 2H
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3 0
2 years ago
Erin's savings increased by 1/2 of her savings is $15,000. Find her savings.
Natasha_Volkova [10]

Answer:

$22,500

Step-by-step explanation:

1/2 of $15000 is $7500, $7500+$15000 is $22,500

5 0
2 years ago
Help quick please<br><br><br><br><br> ________
Kruka [31]
Hey

Area of first rectangle = 18 x 21 = 378 in^2

Area of second rectangle = 17 x 9 = 153 in^2

Total area = 378+153 = 531 in^2

Option 1


Hope this helps :)
5 0
2 years ago
Read 2 more answers
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