Answer:
(x) = 
Step-by-step explanation:
let y = 2x
Rearrange making x the subject
divide both sides by 2
= x
changing y back into terms of x
(x) =
8y= -24 -2x Y= (-12x -144):48
Y= (-24-2x):8. Y= -1/4x -3
Y=-1/4x -3.
They are equal
Answer:
C) -4, -2, 1
Step-by-step explanation:
The zeros of a function are those values of x in which the function intersects with the x axis (that is, with y=f(x)=0).
In the shown graph, the values where the function takes values y=0 are x=-4, x=-2 and x=1.
Answer:
There's nothing there I believe you forgot to add a link just add or create another question and i'll see what I can do :)
Step-by-step explanation:
Answer:
the daily fee =33 dollars
and the mileage charge.=0.35
Step-by-step explanation:
let d: be daily fee and m for mileage
cost of rental =(d*number of days)+ (m*number of mileage)
her first trip: 4d+440m=286
her second trip: 3d+190m=165.5
solve by addition and elimination
4d+440m=286 ⇒ multiply by 3 ⇒12d +1320m=(3)286
3d+190m=165.5⇒ multiply by 4⇒12d+190(4)m=4(165.5)
12d+1320m=858
12d+760m=662
subtract two equation to eliminate d
12d+1320m-12d-760m=858-662
560m=196
m=7/20=0.35 for on mileage
d: 4d+440m=286
4d=286-440(0.35)
d=(286-154)/4 33 dollars
