?Find the extrema of the function
by analyzing its graph below.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Solve the problem.Arches in the shapes of parabolas are often used in construction. Find the equation of a parabolic arc that is 20 feet high at its highest point and 22 feet wide at the base, as illustrated in the figure. Place the origin at the midpoint of the base.
A. y = - x2 + 20
B. y = -x2 + 22
C. y = -x2 + 20
D. y = x2 + 20
If ?DEF is isosceles and ET bisects ?DEF, then
(a) ET ? DF. (b) ET bisects DF. (c) Neither (a) nor (b) is necessarily true. (d) Both (a) and (b) are true. (e) DET FET.
Write each inequality in interval notation and graph the interval on a number line.-3 < x < 1
A. (-3, 1)
B. [-3, 1]
C. (-3, 1]
D. [-3, 1)
Solve the problem. Express your answer as an integer or simplified fraction. - 4 =
- 3
A. - 14 B. - 6 C. 14 D. - 2