A line drawn in a coordinate system can be expressed by an expression (equation). Each line has its own expression. The expression for one line is [[$ y = x +1$]]. In the expression [[$x$]] expresses the value of the [[$x$]] coordinate of a point on the line and [[$y$]], respectively, expresses the value of the [[$y$]] coordinate of the same point. Use the expression to calculate the value of the [[$y$]] coordinate when

a) [[$x = 0$]]


b) [[$x = 2$]]


c) [[$x =-3$]]


d) How can you draw the line [[$y = x +1$]] to the coordinate system?