Question

Y = 4x + 2 y = x + 5 on a graph

Answer 1

`\left\{\begin{array}{ccc}y=4x+2\\y=x+5\end{array}\right\\\\y=4x+2\\for\ x=0\to y=4(0)+2=2\to(0;\ 2)\\for\ x=-1\to y=4(-1)+2=-4+2=-2\to(-1;-2)\\\\y=x+5\\for\ x=0\to y=0+5=5\to(0;\ 5)\\for\ x=-5\to y=-5+5=0\to(-5;\ 0)\\\\\text{Look at the picture}\\\\Answer:\ x=1;\ y=6\to(1;\ 6)`