Use the graph below to determine a, and d for the sequence. {(1,2). (2,5), (3, 3), (4. 11). 6. 14. (6. 17)}
20
18
18+
14. +
12
2
10+
8+
1

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

all it means is function 3

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!