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Question 312773: 1.
Match the number on the left with the proper combination of number types on the right. (5 points)
A. Real, Rational, Integer, Whole, Natural or Counting
B. Real, Rational, Integer, Whole
C. Real, Rational, Integer
D. Real, Irrational
E. Real, Rational
Sqrt 15 (Sqrt stands for the square root of a number)
15
5/4
-10
0
2.
Solve the equation for x.
4-3(x+1) = 2x (1.0 points)
A) x=-1
B) x=1/5
C) x=1
D) none of the above
3.
Solve the equation for x.
2x-7 = 2x+3 (1.0 points)
A) x=10
B) x=0
C) x=any real number
D) no solution
4.
Solve for x.
4-5x > -6 (1.0 points)
A) x>2/5
B) x<2
C) x>2
D) none of the above
5.
Solve for x.
3x-5 < 1 and -2x < 4 (1.0 points)
A) x<2 and x<-2
B) x<2 and x>-2
C) x<-4/3 and x<-2
D) none of the above
6.
Describe the graph of the solution to the combined inequality. 2x < -4 and 2x < 8 (1.0 points)
A) open dot on -2 & 4, and a line between them
B) open dot on -2 and arrow to the left
C) open dot on 4 and arrow to the left
D) none of the above
7.
Solve for B.
Ax + By = C (1.0 points)
A) B = Ax-C
B) B = (-Ax+C)/y
C) B = C - Axy
D) none of the above
8.
If y varies jointly as x and z, what is the expression for k? (1.0 points)
A) k=xyz
B) k=(xy)/z
C) k=y/(xz)
D) none of the above
9.
If f(x)= 2x-3 and g(x)= -4x, find g[f(-2)]. (1.0 points)
A) -56
B) 13
C) 28
D) none of the above
10.
Find the inverse of the function given.
f(x)= 3x+5 (1.0 points)
A) y=-3x+5
B) y=-3x-5
C) y=(x-5)/3
D) none of the above
11.
Find the slope and the y-intercept of the equation.
2x-3y = 6 (1.0 points)
A) m=2/3, b=6
B) m=2/3, b=-2
C) m=2, b=6
D) none of the above
12.
Write a line parallel to y = 2x-4 and passing through the point (2,3) (1.0 points)
A) y=(1/2)x-1
B) y=2x-3
C) y=2x-1
D) none of the above
13.
What is the slope of the line perpendicular to y =(3/4)x-7. (1.0 points)
A) -4/3
B) 3/4
C) 4/3
D) none of the above
14.
Match the example to the property it represents. (5 points)
A. Reflexive property of equality
B. Commutative property of addition
C. Distributive property
D. Inverse property of addition
E. Transitive property of equality
3+7+2=3+2+7
4+(-4)=0
3x=3x
If 3=5-2 and 5-2=6*(1/2) then 3=6*(1/2)
3(x-6)=3x-18
15.
If x varies directly as y, and x=1 while y=15, what is x if y=5 (1.0 points)
A) 1/15
B) 3
C) 1/3
D) none of the above
Found 2 solutions by Fombitz, 5davise:
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! Please re-post your question and be specific about the problems you are having.
Use the other posts as a guide to what is appropriate.
Include any partial work you may have completed showing where you're stuck.
Don't just list 15 questions and expect solutions.
Answer by 5davise(1)  (Show Source):
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