Q. Find the zeros of the function f(x)=x2+3.8x−1.8. Round values to the nearest hundredth (if necessary).Answer: x=
Identify Equation Type: Identify the type of equation and the method to find its zeros.The given function is a quadratic equation of the form f(x)=ax2+bx+c. To find the zeros of the function, we need to solve the equation x2+3.8x−1.8=0. We can use the quadratic formula, x=2a−b±b2−4ac, where a=1, b=3.8, and c=−1.8.
Apply Quadratic Formula: Apply the quadratic formula to find the zeros of the function.Using the quadratic formula, we have:x=2(1)−3.8±3.82−4(1)(−1.8)x=2−3.8±14.44+7.2x=2−3.8±21.64
Calculate Discriminant and Zeros: Calculate the discriminant and the zeros.First, calculate the square root of the discriminant:21.64≈4.65Now, calculate the two possible values for x:x=(2−3.8+4.65) and x=(2−3.8−4.65)x≈0.425 and x≈−4.225
Round Zeros: Round the zeros to the nearest hundredth.Rounding the values to the nearest hundredth, we get:x≈0.43 and x≈−4.23
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