Easy math. will give brainliest. luke is trying to lose weight. he currently weighs 250 lbs and is planning on losing 4 lbs a week. this can be modeled by the function f(x) = -4x + 250. his goal is to have lost 50 lbs in 10 weeks. is this possible? if not, what does he need to change? a) it is possible. b) it is not possible. he needs to lose at least 6 lbs a week. c) it is not possible. he needs to lose at least 5 lbs a week. d) it is not possible. he needs to lose at least 3 lbs a week.

C) It is not possible. He needs to lose at least 5 lbs a week

Step-by-step explanation:

This would not be possible. To know, you have to plug 10 into the function:

After getting this value, ou have to take it away from 250:

40 is less than 50, so he would have to lose more than 4 pounds a week

To see if losing 5 pounds is enough, replace the -4 from the function with a -5:

From here plug in 10 just like the previous time:

From here take 200 away from 250 to find the pounds lost in 10 weeks:

50 is equal to the goal of 50 pounds, so therefore, Luke nees to lose at 5 pounds a week

I hope this helps!

b

step-by-step explanation: