What is the area of the figure bounded by the line x=4, x axis, and line y=x ?

The answer explanation assumes that the figure formed by these 3 lines is a triangle but im seeing a square. Can any one explain how these lines form a triangle and not a square. The answer is 8 btw.

The line x=4 will be a vertical line at x=4. The line y=x will be a diagonal line bisecting the top right quadrant. The x axis is a horizontal line at y=0. Does that make sense?

What is the area of the figure bounded by the line x=4, x axis, and line y=x ?

The answer explanation assumes that the figure formed by these 3 lines is a triangle but im seeing a square. Can any one explain how these lines form a triangle and not a square. The answer is 8 btw.

What is the area of the figure bounded by the line x=4, x axis, and line y=x ?

The answer explanation assumes that the figure formed by these 3 lines is a triangle but im seeing a square. Can any one explain how these lines form a triangle and not a square. The answer is 8 btw.

How is the line y=x a diagonal line bisecting the right quadrant? Is that a the deifnition of y=x? I took it as saying y=x which means y=4 becuase x=4?

How is the line y=x a diagonal line bisecting the right quadrant? Is that a the deifnition of y=x? I took it as saying y=x which means y=4 becuase x=4?