In Exercises 1–6, (a) state the values of a, b, and c in the given quadratic function f ( x ) = a x 2 + b x + c ; (b) supply the missing values in the table below; (c) calculate f ( a + h ) ; and (d) give a valid technology formula for f ( x ) . (Optional: Use technology to check the values in the table.) [ HINT: See Quick Examples 1–3.] x –3 –2 –1 0 1 2 3 f ( x ) f ( x ) = − 2 x 2 + x + 2
In Exercises 1–6, (a) state the values of a, b, and c in the given quadratic function f ( x ) = a x 2 + b x + c ; (b) supply the missing values in the table below; (c) calculate f ( a + h ) ; and (d) give a valid technology formula for f ( x ) . (Optional: Use technology to check the values in the table.) [ HINT: See Quick Examples 1–3.] x –3 –2 –1 0 1 2 3 f ( x ) f ( x ) = − 2 x 2 + x + 2
Solution Summary: The author explains that a quadratic equation or function is expressed in function form as well as in equation form.
In Exercises 1–6, (a)state the values of a, b, and c in the given quadratic function
f
(
x
)
=
a
x
2
+
b
x
+
c
; (b)supply the missing values in the table below;(c)calculate
f
(
a
+
h
)
; and(d)give a valid technology formula for
f
(
x
)
. (Optional: Use technology to check the values in the table.) [HINT: See Quick Examples 1–3.]
For the following function f and real number a,
a. find the slope of the tangent line mtan
=
f' (a), and
b. find the equation of the tangent line to f at x = a.
f(x)=
2
=
a = 2
x2
a. Slope:
b. Equation of tangent line: y
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