the piecewise function f(x) is graphed below. use geometric formulas to evaluate the following definite…

the piecewise function f(x) is graphed below. use geometric formulas to evaluate the following definite integral. ∫₂¹⁰ f(x) dx
Answer
Explanation:
Step1: Divide the region under the curve
The region between (x = 2) and (x=10) under (y = f(x)) can be divided into two triangles and a trapezoid.
Step2: Calculate area of first - triangle
The first triangle has base (b_1=3) (from (x = 2) to (x = 5)) and height (h_1 = 2). Using the formula for the area of a triangle (A=\frac{1}{2}bh), we have (A_1=\frac{1}{2}\times3\times2 = 3).
Step3: Calculate area of trapezoid
The trapezoid has bases (b_1 = 2), (b_2=1) and height (h = 2) (from (x = 5) to (x = 6)). Using the formula for the area of a trapezoid (A=\frac{(b_1 + b_2)h}{2}), we get (A_2=\frac{(2 + 1)\times2}{2}=3).
Step4: Calculate area of second - triangle
The second triangle has base (b_3=4) (from (x = 6) to (x = 10)) and height (h_3 = 1). Using the formula for the area of a triangle (A=\frac{1}{2}bh), we have (A_3=\frac{1}{2}\times4\times1=2).
Step5: Calculate the definite integral
The definite integral (\int_{2}^{10}f(x)dx) is the sum of the areas of these geometric shapes. So (\int_{2}^{10}f(x)dx=A_1+A_2+A_3=3 + 3+2=8).
Answer:
8