✒️[tex]\large{\mathcal{ANSWER}}[/tex]
[tex]===============[/tex]
- From the analysis of this first degree function, we realize that this truck driver must receive 1200 reais, therefore, we conclude that the correct alternative is the letter D.
● But how do you know this?
● Let's set up this function:
[tex] \: \boxed{fx= 200 + 4x} [/tex]
Where :
- F ( x ) = Price to be received by the truck driver.
200 Fixed value
x = Kilometer traveled
● Knowing this, let's solve the question:
She tells us that the price to be paid for a truck freight is calculated as follows : 200 fixed value , for expenses plus a value of 4 reais per kilometer driven , having said that , she asks us how much a truck driver will receive if he does a 250 km journey;
● As for every kilometer traveled , he receives 4 reais , in 250 km he will receive 1000 reais , that is because 250 . 4 = 1000 , but there is a fixed rate of 200 , therefore , by our built - in function , we have to:
[tex]f(x) = 200 + 4250 \\ f(x) = 200 + 1 000 \\ \: \boxed{f(x)= 1200} ➪ \: Letter \:d[/tex]
[tex]−−−−−−−✠−−−−−−−[/tex]
