Final answer:
To mark the points on the coordinate plane, substitute different values of x into the given equations and calculate the corresponding y-values. Plot the points (x, y) on the graph.
Step-by-step explanation:
To mark the points on the coordinate plane, we can substitute different values of x into the given equations and calculate the corresponding y-values. Here are the steps to mark the points for each equation:
(A) y=x-2: Choose a value for x, substitute it into the equation, and calculate the y-value. Plot the point (x, y) on the graph.
(B) y=-x-2: Repeat the same process for this equation.
(C) y=|x|-2: Substitute different values of x, calculate the absolute value of x, subtract 2, and plot the points for each value.