Luis quiere comprar una bicicleta que cuesta $3.500 pero tiene un descuento del 20% ¿Cuánto pagará Luis por la bicicleta?

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step-by-step explanation:

answer-

a. the total cost of a taxi ride includes an initial charge of approximately $3.30

solution-

in the graph,

x axis represents the distance traveled and

y axis represents the total fare

the best fit line intersects the y axis approximately at 3.30 or y-intercept is 3.30. at x=0, i.e when the taxi is still, the value of y or the cost of the fare is 3.30. that means $3.30 is the fixed charge which will be levied along with the other fare.

the slope of the line represent the cost per mile. as the best fit line is straight line, so the price per mile is constant.

-1+i and -1-i are the actual answers

if we want to find the roots of the equation , we can use the quadratic formula. for quadratic equation of the form , , corresponds to a = 1, b = 2, c = 2; the solution to the equation is given by

since ,