Sarah is renting a car for her weekend trip to the mountains. The total cost of the rental, y, as it relates to the number of miles driven, x, is shown in the graph below.
https://fwisdweb.owschools.com/media/g_alg01_ccss_2015/3/img_alg1u03l06_12.gif

Fill in the blanks so that the functions below, written to represent this situation, are correct. If necessary, answer in terms of a decimal, rounded to the nearest hundredth.
f(x)= ______x+________

Question

Sarah is renting a car for her weekend trip to the mountains. The total cost of the rental, y, as it relates to the number of miles driven, x, is shown in the graph below.
        https://fwisdweb.owschools.com/media/g_alg01_ccss_2015/3/img_alg1u03l06_12.gif

Fill in the blanks so that the functions below, written to represent this situation, are correct. If necessary, answer in terms of a decimal, rounded to the nearest hundredth.
f(x)= ______x+________

anonymous · Answer

sorry I don't know this

primeralph · Answer

At 0 miles, the cost is 25. Between 0 and 40 miles, the cost rises by 10.
Hence f(x) = (10/40)x+25 = 1/4 *x+ 25

fairygirl0404 · Answer

Thank you @primeralph!

primeralph · Answer

You're welcome. So what will the answers be?