Julio plans a diet to gain 0.2 kg a day. after 14 days he weighs 40 kg. the number of days he diet and his weight are related. what is the equation relating julio's weight, w, to the number of days, d, on his diet?
how long will it take julio to reach his goal weight of 50 kg?

picture below

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is