Question

Please hurry need done asap

Answer 1

`y=0.46591x+7.71591`

Explanation:

Labelled points are
`(21,\: 17.5)=(x_1,\:y_1) \: \&\:(43,\: 27.75)=(x_2,\:y_2)`

Slope of line (m)
`=(27.75-17.5)/(43-21) =(10.25)/(22) =(41)/(88)`

Equation of line in point - slope form is given as:

`y-y_1 = m(x-x_1)`

`\therefore y-17.5= (41)/(88) (x-21)`

`\therefore y= (41)/(88) x-(861)/(88)+17.5`

`\therefore y= (41)/(88) x+17.5-(861)/(88)`

`\therefore y= (41)/(88) x+(1,540-861)/(88)`

`\therefore y= (41)/(88) x+(679)/(88)`

`\therefore y=0.465909091x+7.71590909`

`\therefore y=0.46591x+7.71591`