A cab company charges an initial fee of $2.50 plus $1.25 per mile. Which equation represents the cost, c, after a number of miles, m, are driven? Write an equation to model the problem. Which ordered pair represents the cost for a customer to travel 12 miles? c=2.50m+1.25 (12,31.25) c=1.25m+2.50 (12,17.50) c=1.25m+2.50 (12,7.60) m=1.25c+2.50 (12,14.75)

y= 1.25xt2.50 thats the a

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0