Which ordered pair is the vertex of y = |x| +4 ?

Algebra
Tutor: None Selected Time limit: 1 Day


Which ordered pair is the vertex of y = |x| +4 ?
a. (0, 4)
b. (0, –4)
c. (–4, 0)
d. (4, 0)

The cost of producing 4 metal units is $204.80. The cost of producing 8 units is $209.60. What will it cost to produce 14 units?
a. $214.40
b. $219.20
c. $216.80
d. $218.00

What is the value of the function f(x) = 2x – 5 when x = 22?
a. 105
b. 49
c. 17
d. 39

Which equation represents a horizontal line?
a. y = 2
b. y = x + 1
c. x = y + 2
d. x = 2


May 11th, 2015

1-  the right answer is (a)  (0,4)

2- the right answer is (c)  216.8 $

3- the right answer is (a) 105

4- the right answer is (a) y=2

May 11th, 2015

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