STAAR Algebra I Practice Test 7

10 free STAAR Algebra I practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

STAAR Algebra I Practice Test 7Tutor mode

Question 1 of 10

Reporting Category 2: Describing and Graphing Linear Functions, Equations, and Inequalities

The student council at Pecan Hollow Middle School sells lemonade at a game. The function $P (n) = 4.5 n - 270$ gives the council's profit, in dollars, after selling $n$ cups.

Which statement about a key feature of the graph of $P$ is true?