Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at at constant rate of 50 feet/minutes until it reaches the peak at 2000 feet. then, as the car moves down to the hills base, it’s elevation drops at the same time. the equation that models the cable car elevation ,e , after t minutes is e = the cable cars elevation will be 750 feet after ? ? minutes

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3

4th option is correct xy=-10

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