Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Algebra: Graphs, graphing equations and inequalities

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Question 40249This question is from textbook College Algebra

: question is: f(x)=2x^2-x-1
List the y-intercept, if there is one, of the graph of f(x).This question is from textbook College Algebra

Click here to see answer by Nate(3495)

Question 40251This question is from textbook College Algebra

: f(x)=x^2-2x
a) Find the average rate of change of f from 1 to x.
f(x) - f(1)
--------- (x does not = 1)
x - 1
b) Use result from part (a) to compute the average rate of change from x = 1 to x = 2.
c) Find an equation of the secant line containing (1, f(1)) and (2, f(2))This question is from textbook College Algebra

Click here to see answer by venugopalramana(3286)

Question 40294: "Use the discriminant to find the number of the x-intercepts of the graph of the function y=-13x^2+2x+6."

Click here to see answer by stanbon(26297)

Question 40294: "Use the discriminant to find the number of the x-intercepts of the graph of the function y=-13x^2+2x+6."

Click here to see answer by mbarugel(146)

Question 40292: Ok can you help me with this one?
"Use the discriminant to determine whether the vertex of the graph of the function 6x^2-2x+4 below lies above, below, or on the x-axis."
Click here to see answer by stanbon(26297)

Question 40237: Write an equation in slope intercept form satifying the given conditions:
passes through (-4,7) and (2,4)
Click here to see answer by fractalier(1804)

Question 40432This question is from textbook college algebra gary rockswold

: I'm having a problem with these could you please help me. Thanks in advance!!!
b)
x -2 -1 0 1 2
y .25 .5 1 2 4
Given the table above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph, and also the domain and range of the entire function.
Graph
Graph Type
Explanation
Domain
Range

d) In most businesses, increasing prices of their product can have a negative effect on the number of customers of the business. A bus company in a small town has an average number of riders of 1,000 per day. The bus company charges $2.00 for a ride. They conducted a survey of their customers and found that they will lose approximately 50 customers per day for each $.25 increase in fare.
Given the description above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph you have drawn, and also the domain and range of the entire function excluding unrealistic values. The vertical axis is the number of riders per day, and the horizontal axis is the fare.
Graph
Graph Type
Explanation
Domain
Range
This question is from textbook college algebra gary rockswold

Click here to see answer by Nate(3495)

Question 40491: Use the slope-intercept method to graph
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Question 40492: Write an equation that is equivalent to Someone please help me solve this!!!
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Question 40497: The numerical coefficient of the middle term of the product of equals what?
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Question 40500: If , then what is the value of ?
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Question 40501: What is the solution?
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Question 40496: Fill in the blank with the correct word: The set of permissible replacement values for the variables in a particular equation or inequality is called the ____?____ for that equation or inequality. Someone please please please help me!!!
Click here to see answer by stanbon(26297)

Question 40378: A home-based company produces both hand-knitted scarves and sweaters. The scarves take 2 hours of labor to produce, and the sweaters take 14 hours. The labor available is limited to 40 hours per week, and the total production capacity is 5 items per week. Write a system of inequalities representing this situation, where x is the number of scarves and y is the number of sweaters. Then graph the system of inequalities.
Thank you!!!!

Click here to see answer by prabhjyot(164)

Question 40613: Find the slope of the line through the pair of points.

(-9, -6) and (-9, -8)

Click here to see answer by junior403(76)

Question 40659: graph the solution set
x>4
<------------------->
Click here to see answer by tran3209(100)

Question 40612: Name the quadrant, if any, in which the point is located.

(-18, 0)
Click here to see answer by siouxie(6)

Question 40681: write the equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x+1
Click here to see answer by Nate(3495)

Question 40660: graph the solution set
3x>2x-4
<------------------->
Click here to see answer by Nate(3495)

Question 40907: FIND THE ZEROS
x^2+2x-63=y
x^2-x-72=y
Click here to see answer by stanbon(26297)

Question 40924: compute and simplify the difference quotient F(x+h)-F(x)/h
F(x)=11-4x^3
Click here to see answer by venugopalramana(3286)

Question 40985This question is from textbook

: Determine the point A(x,y) so that the points A(x,y), B(0,3) C(1,0), D(7,2) will be the vertices of a parallelogram.
I think it is A(5,6), but I am not sure. Thank you for your help. This question is from textbook

Click here to see answer by psbhowmick(456)

Question 41232This question is from textbook college algebra

: It is approximately 300 miles from chicago,illinois to st. louis,missouri. allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
a)write a linear function that expresses the distance traveled,d, as a function of time,t.
c)write a linear function that expresses the distance to be traveled to reach st.louis,s,as function of time,t.

textbook info.
ISBN 0-321-27908-5
TITLE
COLLEGE ALGEBRA BY GARY ROCKSWOLD
3RD EDITION
PROBLEM 3This question is from textbook college algebra

Click here to see answer by fractalier(1804)

Question 41235: This question is from textbook college algebra
: It is approximately 300 miles from chicago,illinois to st. louis,missouri. allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
d) how far will i need to travel to rerah St.Louis after i have traveled 3 hours.
Thank you for the help in advance.
textbook info.
ISBN 0-321-27908-5
TITLE
COLLEGE ALGEBRA BY GARY ROCKSWOLD
3RD EDITION
PROBLEM 3

Click here to see answer by Nate(3495)

Question 41279: Graph this equation:
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Question 41280: Graph this equation:
Click here to see answer by psbhowmick(456)

Question 41309: Coeffecient of x^2 in:
Click here to see answer by zeynep(43)

Question 41472: graph y=3sinx and y=sin 3x on the same axes. label the graph of each function.
I know the amp. of first function is 3 and period is 2pi and for second function amp. is 1 and period is 2pi/3 i just dont know how to graph
Click here to see answer by AnlytcPhil(958)

Question 39419: Y=2x-3
Y=x2+3
Y=3x

Click here to see answer by tran3209(100)

Question 41729: To solve y-7=3x for y, undo the subtration by adding 7. What do you get
Click here to see answer by fractalier(1804)

Question 41759: Solve the system by graphing
x - y = 2
3x - 3y = 6
Thank You!!!
Click here to see answer by tutorcecilia(2042)

Question 41857: find the slopes, if they exist, of the linecontaining these points?
(-5,4)and(1-2)

(3,2)and(-5,0)
Click here to see answer by fractalier(1804)

Question 41842: Find an equation of the line that satisfies the conditions. Write the equation in standard form.
Through(0,3);
Click here to see answer by nik_consult(24)

Question 41841: Find the equation in slope-intercept form of the line satisfying the conditions.
;through(0,-3)
Click here to see answer by fractalier(1804)

Question 41946: Solve the following system by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
Click here to see answer by psbhowmick(456)

Question 41992: How do you find the x and y intercept of y-2x=5,
a. x-intercept located at (– , 0); y-intercept located at (0, 5).
b. x-intercept located at (0, 5); y-intercept located at (– , 0).
c. x-intercept located at (2, 0); y-intercept located at (0, 5).
d. x-intercept located at (– , 0); y-intercept located at (0, 5).

these are the choices, I have no idea where to start, thanks ,Lauren

Click here to see answer by checkley71(8405)

Question 42039: Graph the function and state the domain and range.
y=4-x^2

Click here to see answer by rapaljer(3625)

Question 42038: Graph the function and state the domain and range.
y = 0.3x

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Question 42021This question is from textbook

: Find the maximum value of y=-x^2+6x.
Thank you.
This question is from textbook

Click here to see answer by rapaljer(3625)

Question 42015This question is from textbook

: Determine the vertex of y=x^2-8x+22
I have D(4,8) is this correct? Thank you.This question is from textbook

Click here to see answer by rapaljer(3625)

Question 41996: Which is the negitive -|4| or |-4| I have no idea. Thanks
Click here to see answer by rapaljer(3625)

Question 42052: Iam having difficulty graphing polynomials and Rational Functions particuarly in finding the X and y intercepts.
Sketch the graph of the Rational function
2x^2 + 5x + 3/x-4
Click here to see answer by psbhowmick(456)

Question 42013This question is from textbook

: Explain how the graph of y-5=(x-3)^2 can be obtained from the graph of y=x^2.
I think it is shift the graph of y=x^2 right 3 units and up 5 units. Is this correct? Thank you.This question is from textbook

Click here to see answer by kev82(145)

Question 42107: Graph the function and state the domain and range.
y = 0.3x
Click here to see answer by psbhowmick(456)

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