Question

Question no 14th
Answer is 3rd Give explanation​

Answer 1

Step-by-step explanation:

y=4x+1

See there the first box let that is 1.

Then see second boxes these contain 5 let them y.

Then see last boxes they contain 9 and they are larger so let them 4x.

Answer 2

Step-by-step explanation:

AB is 4x + y = 1 Its slope is -4

BC is 3x - 4y + 1 =0 its slope is 3/4

If m be the slope of AC, the AB and AC are equally inclined to BC.

∴

1+(3/4)(−4)

3/4−(−4)

=

1+(3/4)m

3/4−m

(note '-' sign on right)

or

−8

19

=

3m+4

4m−3

or 19(3m + 4) = - 8 (4m - 3)

∴ m = - 52 / 89

∴ Equation of AC through A (2, -7) is

y+7=

89

−52

(x−2)

or 89y+623=−52x+104

or 52x+89y+519=0