2nd one need an answer branily est!

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?