Point D'D ′
D, prime is the image of D(-2, 1)D(−2,1)D, left parenthesis, minus, 2, comma, 1, right parenthesis under a reflection across the xxx-axis.
What are the coordinates of D'D
′
D, prime?

it has the same slope and a different y-intercept

hope this : )

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

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