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Course: Algebra 2 > Unit 12

Lesson 4: Modeling with two variables
Math
Algebra 2
Modeling
Modeling with two variables
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Problem

Sean drank a slushy as fast as he could. He modeled the relationship between the time since he started drinking T (in seconds) and the remaining amount of slushy S (in milliliters) as S=600−7.5T.
He wanted to graph the relationship from the moment he started drinking until he finished the slushy. Here is his work:
A line decreasing as x increases on an x y coordinate plane. The x axis scales by twenty from zero to one hundred sixty. The y axis scales by two hundred. The y axis is labeled slushy in liters. The x axis is labeled time in seconds. The line starts at the y axis at (zero, six hundred) passing through the point (forty, ten) before reaching the x axis at (eighty, zero).
What mistakes did Sean make when drawing the graph?
Choose all answers that apply: