Find an equation of the line containing the given pair of points (5,2) and (-3,5)

1 answer:

3 0

(5,2)(-3,5)
slope = (5 - 2) / (-3 - 5) = -3/8

y = mx + b
slope(m) = -3/8
use either of ur points...(5,2)...x = 5 and y = 2
now we sub and find b, the y int
2 = -3/8(5) + b
2 = - 15/8 + b
2 + 15/8 = b
16/8 + 15/8 = b
31/8 = b

so ur equation is : y = -3/8x + 31/8....or 3x + 8y = 31

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Find the length of a diagonal of a rectangular box of length 12 cm, width 5 cm and height 4 cm.

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Answer:13

Step-by-step explanation:

this is an phythagoras question

12 x 12 = 144

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144 + 25 = 169

$\sqrt{169$