Arepair technician charges $80 for the first thirty minutes of each house call plus $2 for each additional minute. the repair technician charged a total od $170 for a job how many minutes did the repair technican work

Okay so you know the equation y=2x+80

And you know y=170 so you solve

170=2x+80

And you get y=55

75 I think but I may be wrong

80= the first 30 minutes

2x for every other minute so,

80+2x=170

-80= 2x=90

/2=45                               Add the first 30 minutes from the 80 and you get 75

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1