If you were to solve the following system of equations by using a matrix, which of the following would be your coefficient matrix?

4x-3y=7
x+5y=13

(will post answer choices in a sec!)

***Please explain!! :) THanks! :D

Question

If you were to solve the following system of equations by using a matrix, which of the following would be your coefficient matrix?

4x-3y=7
x+5y=13

(will post answer choices in a sec!)

***Please explain!! :) THanks! :D

anonymous · Answer

Answer choices A,B,C,D (top to bottom) :D

jim_thompson5910 · Answer

4x-3y=7 
x+5y=13

is the same as

4x-3y=7 
1x+5y=13

your coefficients are the numbers that sit in front of the variables

anonymous · Answer

i'm confused though, does the matrix include the solution?? or just the other parts? (the equation)

jim_thompson5910 · Answer

the coefficient matrix is only composed of the coefficients

jim_thompson5910 · Answer

so what are the coefficients in this case?

anonymous · Answer

ohh so it's like this then?|dw:1348973346233:dw|

jim_thompson5910 · Answer

exactly

anonymous · Answer

so my answer is D? :)

jim_thompson5910 · Answer

you got it, D is the answer

anonymous · Answer

yay! :) thanks!! :) And thanks for the medal!! haha :D

jim_thompson5910 · Answer

np