Question

I need help with this question

Answer 1

Answer:
7y = -x + 221

Answer 2

lets take 2 point two get slope

(0.3)A

(21.0)B

slope = <y2 -y1>/<x2-x1>

equal -1/7

equation of straight

y=mx +c

m is the slope

y= -1/7 x +c

take a point to get c

3=m *0 +c

c= 3

y= -1/7 x + 3

Explanation:

multiple equation by 7

7y =-x +21