Q. Find the zeros of the function f(x)=1.1x2+4x+0.7. Round values to the nearest hundredth (if necessary).Answer: x=
Identify type of equation: Identify the type of equation.We have a quadratic equation in the form of ax2+bx+c=0, where a=1.1, b=4, and c=0.7.
Apply quadratic formula: Apply the quadratic formula to find the zeros of the function.The quadratic formula is x=2a−b±b2−4ac. We will use this formula to find the values of x that make f(x)=0.
Substitute values into formula: Substitute the values of a, b, and c into the quadratic formula.x=2⋅1.1−4±42−4⋅1.1⋅0.7
Simplify discriminant: Simplify the expression under the square root (the discriminant).Discriminant = 42−4×1.1×0.7=16−3.08=12.92
Calculate square root: Calculate the square root of the discriminant. 12.92≈3.595
Continue with quadratic formula: Continue with the quadratic formula using the value of the square root. x=2.2−4±3.595
Solve for possible values: Solve for the two possible values of x.x1=2.2−4+3.595≈−0.184x2=2.2−4−3.595≈−3.452
Round values to nearest hundredth: Round the values of x to the nearest hundredth.x1≈−0.18x2≈−3.45
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