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fiasKO [112]
1 year ago
5

(b) Find the equation of the straight line which passes through 81 +88 (i) the point (3, 2) and makes an intercept on the x-axis

is twice as long as that on the y-axis. (ii) the point (-1, 3) whose intercept on the y-axis is thrice that on x-axis.​
Mathematics
1 answer:
ad-work [718]1 year ago
6 0

3x+y=0 and x+2y=7

i)

a= intercept on x axis

b= intercept on y axis

from the question

a=2b

x/2b+ y/b=1

x+2y=2b

since it passes through the point (3,2)

then 3+4=2b

7/2=b

x+2y=7     putting the value of b

ii) given b =3a

then x/a+ y/ 3a =1

3x+y=3a

it passes through ( -1,3) then

-3+3=3a

a=0

3x+y=0

learn more of straight line here brainly.com/question/22394008

#SPJ9

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\mu = 56, \sigma = 5, n = 20, s = \frac{5}{\sqrt{20}} = 1.12

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