To find Ms. Brown's salary for teaching in the district for 3, 4, and 5 years, we can use the function you provided:
\[ s = 1,500y + 40,000 \]
where \( s \) is the total salary and \( y \) represents the number of years.
Now, let's calculate her salary for each of the specified years:
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For 3 years (y = 3): \[ s = 1,500(3) + 40,000 = 4,500 + 40,000 = 44,500 \]
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For 4 years (y = 4): \[ s = 1,500(4) + 40,000 = 6,000 + 40,000 = 46,000 \]
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For 5 years (y = 5): \[ s = 1,500(5) + 40,000 = 7,500 + 40,000 = 47,500 \]
Now, we have her salaries for the first five years:
- After 3 years: $44,500
- After 4 years: $46,000
- After 5 years: $47,500
These points can be represented as (3, 44500), (4, 46000), and (5, 47500) on a graph.