algebra questions
I don’t need any of the open a textbook answers. I have worked hard to get my algebra done but these last units have turned my mind into mush. I don’t just want answers I need an explanation. Any help would be wonderful
Thank you
2) what is the equation for a line that passes through the points (-4, -4) and (8, 23)?
A. y = 9/4 – 13
B. y = -9/4 + 13
C: Y = -9/4 – 5
B Y = 9/4 + 5
3) The number of entertainment websites in 1995 was 59. By 2004, there were 929 entertainment websites. Approximately what was the rate of change for the number of websites for this period of time?
A: 870 websites per year
B: 97 websites per year
C: 10.34 websites per year
D. 494 websites per year
4) Which of the following function notations corresponds to the equation below?
Y – 5.38x = -3
A: f(y)=5.38y-3
B: f(x)=3x-5.38
C: f(x)=5.38x-3
D f(y)=3y-5.38
5)
(-2,-1)
(0,-5)
(6,31)
(8,59)
What is the domain of the set of ordered pairs above?
A: {-2,0,6,8}
B: {-2,-1}
C: {-1,-5,31,59}
D: {8, 59}
6) If the range of the function
Y = (1/2)x +1
Is {0,2,5}, then what is the corresponding domain?
A: {-3,1,7}
B: {-2,2,8}
C: {-1,3,9}
D: {-2,2,9}
7) A line passes through the point (4,2) and has a slope of 3. Find the equation of the line.
A: y=-3x -10
B: y= 3x-14
C: y=3x-10
D: y=-3x – 14
8) According to the table below, what is the range of the data?
Input output
15 24
16 25
17 26
18 27
19 28
A: 15,16,17,18,19
B: 24,25,26,27,28
C: 15,14,13,12,11
D: 25,27,29,31,33
9) What is the slope of the line given by the linear equation below?
4x+7y=16
A: 4/7
B: 7/4
C: -4/7
D: -7/4
10) A linear equation has a slope of 8/3 and crosses the y-axis at -8. What is the equation of the line?
A: y = -8x – 8/3
B: y = 8/3x – 64/3
C: y = 8/3x -8
D: y = 8/3x + 8
11) What is the slope of the line defined by the table below?
X Y
0 7
7 11
14 15
21 19
A: 4/7
B: -7/4
C: -4/7
D: 7/4
12) A linear function has a y-intercept of -8 and a slope of 9. What is the equation of the line?
A: y = 9x - 8
B: y = 1/9x – 8
C: y = 9x + 8
D: y = 9x + 72
13) Rewrite the following equation as a function of x.
9x+20y-12=0
A: f(x) = -20/9x + 5/3
B: f(x) = 20/9x + 3/5
C: f(x) = -9/20x + 3/5
D: f(x) = 9/20x – 3/5
14: If the domain of the function 4x^2 – 2y = 2 is {-4,0,3}, then what is the corresponding range?
A: {15,-1,8}
B: {31,-1,17}
C: {31,0,18}
D: {33,1,19}
15) In the function f(x) = x^3 + 12x^2 – 14x + 14, what represents the output value?
A: 12x^2
B: x
C: x^3
D: f(x)
16: If f(t) = t^2 + 9, find f(3)
A: 15
B: 3t^2 + 27
C: 9
D: 18
2 answers
There must be a better way to learn this material than asking a bunch of unknown volunteers to explain them all to you.
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