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algebra 1
algebra 1
20 terms
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algebra 1 basics
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Answers
1
For which function defined by a polynomial, are the zeros of the polynomial -2 and -7?
y = x2 + 9x - 14
y = x2 - 9x + 14
y = x2 + 9x + 14
y = x2 - 9x - 14
2
which is equal to m
9
*m
9
0
m18
m81
m9
3
Simplify the expression:
–
2x + 4(x + 1) – 10
2x-9
2x-6
-2x-6
6x – 9
4
If
h
(
x
) = 2
x
2
+ 3
x
+ 1, find
h
(-2).
15
3
-3
-13
5
Which choice represents the solution(s) to the equation (
x
- 4)
2
= 3
x
- 12 ?
x = -7, x = -5
x = -7 only
x = 7 only
x = 7, x = 4
6
what is the slope of the two points (-4,2) and (6,6) ?
2/5
5/2
-5/2
-2/5
7
whats the intersection of the lines y=2x+1 and y=-5x-6
(1,-1)
(-1,1)
(-1,-1)
(1,1)
8
if the rise is 15, then what is the run on a line y=5x-2
3
10
5
4
9
which point does not lie on the graph y=-2x+7
(-3,1)
(-2,11)
(-1,9)
(4,-1)
10
what is the y-intercept of y=2x
2
0
1
y
11
what is NOT equivalent to 32x+28y
2(16x + 14y)
4(5x + 7y + 3x)
4(8x+7y)
30(2x - 2y)
12
If f(x) = x
2
+ 6, find f(
–
2)
-1
2
4
10
13
A sequence is defined recursively by:
f
(1) = 4;
f
(
n
) =
f
(
n
-1) + 3
n
. Find
f
(5).
16
46
33
24
14
3(x + 5) = 30
85
75
5
25/3
15
whats equal to 5(10+x)?
10x+5x
50+5x
10x+5
50x+x2
16
whats the solution to the inequality -3x+8<11?
x>-1
x<1
x<-1
x>1
17
What is the range of the function
y
= |
x
| - 3 ?
{ x | x> 3 }
{ y | y > 0 }
All Reals
{ y | y> -3 }
18
y=1/2x+4. Which choice is the
x
-intercept of this line?
-8
4
8
-4
19
Which equation represents a line parallel to the y-axis?
x=-y
x=-4
y=3
y=x
20
Which ordered pair is not in the solution set of the system
y
< 2
x
+ 4 and
y
> (½)
x
- 3 ?
(1,6)
(3,2)
(-1,-3)
(0,0)
