Page 739 - Algebra 1

Lesson Practice
Practice
Graph each function and give the coordinates of the vertex. a. f(x)=⎢x +2.
(Ex 2)
b. f(x)=⎢x+2 . (Ex 2)
c. f(x)=⎢x-1 +2 (Ex 3)
Describe the graph of each function.
(Ex 4)
d. f(x) = 4⎢x
e. f(x) = -2⎢x f. f(x) = -0.5⎢x
g. The distance of a truck to a manhole cover is given by the function
(Ex 5) f(t) = ⎢t + 25. Write the function representing the distance of a truck
starting at the same location, but traveling twice as fast.
Distributed and Integrated
*1.
(107)
2.
( (1 1 0 0 6 6) )
3.
(35)
*4.
(107)
5.
(45)
*6.
(107)
*7.
(107)
8.
(63)
*9.
( (1 1 0 0 6 6) )
Estimate Without graphing the function, which direction would the function f(x) = ⎢x - 6 shift the parent function?
Solve √ 2x = 14. Check your answer. Write 5y - 29 = -14x in standard form.
Multiple Choice What absolute-value function is shown by the graph? A f(x) = 2⎢x B f(x) = 0.5⎢x
C f(x) = -5⎢x D f(x) = -0.5⎢x Translate the inequality 3b + _2 ≥ 1_3 into a sentence.
4
y
2
O
x
-4
-2
2
4
55
Boating The path of a sailboat is represented by the function _3
f(x) = ⎪5x - 30⎥+ 30. At what point does the sailboat tack (turn)?
Write Why does the graph of an absolute-value function not extend past the vertex?
Solve the system of linear equations: 4y = -3x - 4. 4x + 6 = -5y
Geometry The perimeter of the square is 20 centimeters. Solve for x. √x
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Saxon Algebra 1