Senica
11.06.2020 •
Mathematics
Marion is traveling 500 miles by car. She drives 250 miles at an average rate of x miles per hour the first day and the remaining 250 miles at an average rate of x−5 miles per hour. Select the expression that represents the amount of time Marion spent traveling the 500 miles.
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Ответ:
Option B, (-9, -5), 3
Step-by-step explanation:
The point slope form in: y - y1 = m(x - x1)
m is the slope
(x1, y1) is the point
Step 1: Determine what the slope and point is their equation
y + 5 = 3(x + 9)
3 is the slope
(-9, -5) is the point
Option B, (-9, -5), 3