Without solving the system of equations how can you determine if the two systems have the same solution?
3x + 6y = 12
x+y = 7
And
6x +12y = 24
x + y = 7

Through: (-3,-3) parallel to y= 7/3x+3

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12