Evaluate the definite integral by using the formula of a trapezoid

The video tutorial explains how to graph a linear function, focusing on identifying the y-intercept and slope. It then transitions to discussing the area of a trapezoid, emphasizing the correct identification of bases and height. The instructor demonstrates how to rotate the figure to better understand the trapezoid's orientation and calculate its area using the formula: area = 1/2 * (base1 + base2) * height.

Describe the significance of the two parallel sides in the area calculation.

Calculate the area of the trapezoid given the bases and height mentioned.