Respuesta :
[tex]\bf y=2x+b~~\hspace{8em} (\stackrel{x}{-1},\stackrel{y}{0})~\hspace{8em} 0=2(-1)+b \\\\\\ 0=-2+b\implies 2=b[/tex]
To find the value of b plug in the point (-1,0) into the known part of the equation ( y = 2x + b ) and solve for b
0 = 2(-1) + b
0 = -2 + b
To isolate b add 2 to both sides (addition of 2 will make -2 zero and cancel it from the right side and bring it to the left)
0 + 2 = (-2 + 2) + b
2 = 0 + b
2 = b <------------------------B. 2
Hope this helped!
