The function f is defined by f(x)=x2−sin(x). Use a calculator to write the equation of the line tangent to the graph of f when x=0.5. You should round all decimals to 3 places.Answer:
Q. The function f is defined by f(x)=x2−sin(x). Use a calculator to write the equation of the line tangent to the graph of f when x=0.5. You should round all decimals to 3 places.Answer:
Calculate Derivative: To find the equation of the tangent line to the graph of f(x) at x=0.5, we need to calculate the derivative of f(x) to get the slope of the tangent line at that point.The derivative of f(x)=x2−sin(x) is f′(x)=2x−cos(x).
Evaluate Derivative at x=0.5: Now we need to evaluate the derivative at x=0.5 to find the slope of the tangent line.f′(0.5)=2(0.5)−cos(0.5).Using a calculator, we find that cos(0.5) is approximately 0.877, rounded to three decimal places.So, f′(0.5)≈1−0.877=0.123.
Find y-coordinate at x=0.5: Next, we need to find the y-coordinate of the point on the graph of f(x) at x=0.5 to use it in the point-slope form of the equation of the tangent line.f(0.5)=(0.5)2−sin(0.5).Using a calculator, we find that sin(0.5) is approximately 0.479, rounded to three decimal places.So, f(0.5)≈0.25−0.479=−0.229.
Use Point-Slope Form: With the slope of the tangent line and the point (0.5,−0.229), we can use the point-slope form of the equation of a line: y−y1=m(x−x1), where m is the slope and (x1,y1) is the point on the line.Plugging in our values, we get: y−(−0.229)=0.123(x−0.5).
Simplify Equation: Simplify the equation to get it into the slope-intercept formy=mx+b.y+0.229=0.123x−0.0615. Now, we add 0.0615 to both sides to isolate y.y=0.123x−0.0615+0.229.
Combine Constants: Finally, we combine the constants to get the final equation of the tangent line.y=0.123x+0.1675.This is the equation of the tangent line to the graph of f(x) at x=0.5, rounded to three decimal places.
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