Mathematics

Grade10

Easy

Question

# Mia had $ 350 in her bank account at the beginning of the school year. Each week she withdraws $ 50. Two graphs model the situation

Write a function for each graph.

- f(x) = -50x + 350 , 0 ≤ x ≤ 7 ; f(x) = 350 – 50 ceiling(x) , 0 ≤ x ≤ 7
- f(x) = 50x + 300 , 0 ≤ x ≤ 7 ; f(x) = 300 – 50 ceiling(x) , 0 ≤ x ≤ 7
- f(x) = -50x + 300 , 0 ≤ x ≤ 7 ; f(x) = 300 + 50 floor(x) , 0 ≤ x ≤ 7
- f(x) = 50x + 350 , 0 ≤ x ≤ 7 ; f(x) = 300 – 50 floor(x) , 0 ≤ x ≤ 7

Hint: