Question

a. Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot
per day. Write an equation for the water level, L, after d days. In how many days will the
water level be 26 feet?

b. A caterer charges $120 to cater a party for 15 people and $200 for 25 people. Assume
that the cost, y, is a linear function of the number of x people. Write an equation in slope-intercept form for this function. What does the slope represent? How much would a party for 40 people cost? ​

Answer 1

Answer:

a. y=MX+b

Step-by-step explanation:

d=#of days

L=water level

L=34-0.5d

26 =34 -0.5d

-34=-34

__ =-0.5d

-8 ____

0.5

d=16

in 16 days water level will be 26 ft