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Inessa05 [86]
2 years ago
8

WILL GIVE BRAINLIEST

Mathematics
1 answer:
Natalija [7]2 years ago
3 0

Answer:

r=9⅓

Step-by-step explanation:

(10,r). (4,-3)

(x¹,y¹) (x²,y²)

gradient=<u>y²-y¹</u>

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>x²-x¹

<u>4</u>= <u>-</u><u>3</u><u>-</u><u>r</u>

3<u> </u><u> </u><u> </u><u> </u>4-10

multiply both sides by 3(4-10)to remove the denominators.

3(4-10<u>)</u>×<u> </u><u>4</u><u> </u>= <u>-</u><u>3</u><u>-</u><u>r</u><u> </u>×3(4-10)

3 4-10

(4-10)×4= (3-r)×3

16-40=9-3r

put the liketerms together

note* signs(- +) change when they cross the equal sign(=)

3r=4+40-16

3r=28

divide both sides by 3

r=28/3.

r=9⅓

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