Page 657 - Algebra 1

Practice
Distributed and Integrated
1.
(89)
2.
(9 0)
*3.
(94)
4.
(24)
6.
(95)
7.
(25)
Find the zeros of the function shown. 2 y y = _1x2 + 2x Add 25 + xy . O x
8.
(92)
*9.
(9 6)
*10.
(9 6)
Simplify
-x 21x + 3
642
Saxon Algebra 1
Solve the equation Solve-0.3+0.14n=2.78.
6 Find the LCD of _x + 6
12
- x2 + 8x + 12 .
_ 5
5x9 .
8 11 9 13 55
10|x| 3
Lesson Practice
Graph each function. a. y=x2 -4x+7
(Ex 1)
c. y=2x2 -9 (Ex 3)
Find the zeros of each function.
b. y=2x2 -16x+24 (Ex 2)
d.
(Ex 4)
e.
(Ex 4)
f .
(Ex 4)
g.
(Ex 5)
y=x2 +10x+25. y=3x2 -21x+30.
y = - _1 x 2 - 1 2
Scoccer The height of a soccer ball that is kicked can be modeled by the function f(x) = -8x2 + 24x, where x is the time in seconds after it is kicked. Find the time it takes the ball to reach its maximum height.
__ 2
-2 246
__ -4 6 = 3 . -6
The table lists the ordered pairs from a relation. Determine whether they form a function.
2 5 16x y 32y _
+ 18 = 4 and graph the solution.
_
5. Solve (31)
x - 3 10
Domain (x) 10
11
Range (y) 15
17
28x + 4
Graph the function y = x2 - 2x - 8.
Write Explain how to reflect a point across the axis of symmetry to get a second point on the parabola.