A radioactive substance of 200 mg is observed. After an hour, the size was reduced by 35%. Identify the y-intercept.

Question

A radioactive substance of 200 mg is observed.  After an hour, the size was reduced by 35%. Identify the y-intercept.

darkknight · Answer

basically you have one point (200, 0) 
and you want another point ((200 x (1-.35)), 1)
basically finding the point after an hour when the size is reduced by 35%
can u find the slope from here? we find y intercept next

Goober · Answer

I’m confused

Goober · Answer

I just need the y intersect but idk how to find it

Goober · Answer

I’m guessing .35 if the x

ramen · Answer

In simple words, the y intercept is basically the point of the line where it crosses the y axis from the points (200,0) and (35% of 200,1). The (200,0) represents the substance at 0 hours and the (35% of 200,1) represents the substance at 1 hour. Hope this helps and you can also use @darkknight s tips too.