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CCA 9-2 Student eTool
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b. Where in the table on your graphing calculator would you look to verify your solution to part (a) of problem 9-1?
b. Where in the table on your graphing calculator would you look to verify your solution to part (a) of problem 9-1?
5
HINT: What x-values would result in a y-value of 9?
HINT: What x-values would result in a y-value of 9?
6
"x" Subscript, 1 , Baseline
x
1
3 "x" squared plus 4 "x" Subscript, 1 , Baseline minus 6
3
x
2
1
+
4
x
1
−
6
negative 5
−
5
r1c2: 49
4
9
r1c3:
negative 4
−
4
r2c2: 26
2
6
r2c3:
negative 3
−
3
r3c2: 9
9
r3c3:
negative 2
−
2
r4c2: negative 2
−
2
r4c3:
negative 1
−
1
r5c2: negative 7
−
7
r5c3:
0
0
r6c2: negative 6
−
6
r6c3:
1
1
r7c2: 1
1
r7c3:
1.5
1
.
5
r8c2: 6.7 5
6
.
7
5
r8c3:
1.8
1
.
8
r9c2: 10.9 2
1
0
.
9
2
r9c3:
r10c2:
r10c3:
7
c. Use your graphing calculator to verify your solutions to the other equations in problem 9-1.
c. Use your graphing calculator to verify your solutions to the other equations in problem 9-1.
8
HINT: Equations from problem 9-1: a. 9 = 3x^2 + 4x − 6 b. 0= 3(x − 5)(2x + 3) c. x^2 + 6x = 0
HINT: Equations from problem 9-1: a. 9 = 3x^2 + 4x − 6 b. 0= 3(x − 5)(2x + 3) c. x^2 + 6x = 0
9
10
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"y"
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2
"a" Superscript, "b" , Baseline
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8
8
9
9
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greater than
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less than or equal to
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greater than or equal to
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negative
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StartRoot, , EndRoot
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