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

Tutors Answer Your Questions about Graphs (FREE)

Question 116974: What is a transformation that flips a graph or figure across a line?
Click here to see answer by Edwin McCravy(8909)

Question 117166: Trying to help my teen w/a project as she's missed a week of school. She was given 10-slopes (i.e. m=0, m=3/4, etc) which will create a design/picture when graphed. It's been a while (25+ years) since I've done this. Since she was not given anything for x or y, is it safe to assume I chose one and use it in each of the 10 equations? I think the equation I use is y= mx + b, but I'm not sure. Guidance for a struggling parent? I'm the oldest on the block and no one else's kids have gotten to this fun part of life yet. Once I get started I'm confident it will all come back...
Click here to see answer by checkley71(8403)

Question 117191: How can you tell if an two equations are perpendicular or parallel?
Click here to see answer by checkley71(8403)

Question 117215: Solve the following system of linear inequalities by graphing.
3x – y < 2
x + y > 2

Click here to see answer by jim_thompson5910(28598)

Question 117210: Graph f(x) = –3x – 2.
Click here to see answer by jim_thompson5910(28598)

Question 117252: graph the solution set of each of the following inequalities

x>4
Click here to see answer by jim_thompson5910(28598)

Question 117253: SOLVE AND GRAPH THE SOLUTION SET OF THE FOLLOWING INEQUALITIES
3x > 2x - 4
the > have a underline underneat it.
Click here to see answer by jim_thompson5910(28598)

Question 117256: TRANSLATE THE FOLLOWING STATEMENTS INTO INEQUALITIES. LET X REPRESENT THE NUMBER IN EACH CASE.
2 times a number, increased by 28, is less than or equal to 6 times that number.
Click here to see answer by ankor@dixie-net.com(15660)

Question 117388: The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.
Click here to see answer by stanbon(57387)

Question 117387: Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.
Click here to see answer by stanbon(57387)

Question 117422: show graph one soulution, no solution or many solutions
x + y =-3
2x-y= -3
Click here to see answer by jim_thompson5910(28598)

Question 117451: We have graphed a boundary line for the linear inequality. Determine the correct half-plane and complete the graph.
y>3. Would the inequality then become y=3? I have the graph with the shaded area completed, but would the boundary line remain slashed or should it be a solid line?
Thank You, Barb Neely
Click here to see answer by Fombitz(13828)

Question 117459: Graph the system of constraints. Then find the values of x and y that maximize A=20x+30y and list the maximum value.
x greater then or equal to 0
y greater then or equal to 0
-2x+4y less then or equal to 4
x less then or equal to 4
Click here to see answer by Fombitz(13828)

Question 117454: I am afraid I am doing the following problem wrong. Please help
The problme is......find the equation for the folowing lines and then graph them using any graphing utility.
(A) Perpendicular to x+2y=10, and passing through the point (1,1)
I thought I was supposed to first solve for x and y which I got y=5 and x=10.....WHen I graph that i get a straight line passing throu (1,1).
Can you please help? THank you!!!
Click here to see answer by Fombitz(13828)

Question 117466: how do you write the equation lines through the given points?
(2,4) (5,7)
Click here to see answer by jim_thompson5910(28598)

Question 117483: Solve and graph the solution set. 3x is less than or equal to 7x + 20
Click here to see answer by jim_thompson5910(28598)

Question 117502: please help
how do you write the equation of a line through the given point with the given slope?
(6,-6) m=-7/3
Click here to see answer by jim_thompson5910(28598)

Question 117489: Given f(x) = 5x2 – 3x + 1, find f(–2).
Click here to see answer by jim_thompson5910(28598)

Question 117484: Graph 3x + 2y = 6.
Click here to see answer by Fombitz(13828)

Question 117588: Jude's OQ score is more than 15 points away from Sherry's. If Sherry scored 110, then in what range is Jude's score?
Click here to see answer by josmiceli(9697)

Question 117630: i really need help
how do you write an equation of a line that contains the given point and is parrallel to the given line??
(4,1) y=3X-2
please help me
Click here to see answer by jim_thompson5910(28598)

Question 117421: graph each system of equations. One solution, no solution or many solutions
show graph
x-y=3
x-2y=3
Click here to see answer by checkley71(8403)

Question 117636: Y+X=3
Click here to see answer by checkley71(8403)

Question 117655: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Problem: Slope -2, Y intercept (0,4)
Click here to see answer by jim_thompson5910(28598)

Question 117656: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Problem: Slope 5; y intercept (0,-2)
Click here to see answer by jim_thompson5910(28598)

Question 117657: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Problem: slope 2/3; y intercept (0,-2)
Click here to see answer by jim_thompson5910(28598)

Question 117661: write and equation in point slope form for a line parallel to y=5x-8 and goes through the point (-2,7).
Click here to see answer by sofiyacherni(99)

Question 117674: Write the equation of the line L satisfying the given geometric conditions
Problem:
L has y-intercept (0, -3) and is parallel to the line with equation
y = 2/3x + 1

Click here to see answer by solver91311(16897)

Question 117675: Business and finance. In planning for a new item, a manufacturer assumes that
the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost $10,000 to produce and that 300 items will cost $22,000 to produce. Find the equation that relates C and x.
Click here to see answer by stanbon(57387)

Question 117681: This is not from a book.
Graph f(x) = -x - 2.
Thank you for your help!
Click here to see answer by stanbon(57387)

Question 117672: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
Problem: (2, -3) and (2, 4)
Click here to see answer by stanbon(57387)

Question 117670: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
Problem: (-1, 3) and (4, -2)
Click here to see answer by jim_thompson5910(28598)

Question 117664: Find the slope of any line perpendicular to the line through points (0, 5) and
(-3, -4).
Click here to see answer by jim_thompson5910(28598)

Question 117663: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Problem: Slope -3/4; Y intercept (0,8)
Click here to see answer by jim_thompson5910(28598)

Question 117662: Write and equation in point-slope form for a line perpendicular to y=2/3x+1 and goes through the point (8,-4).
Click here to see answer by jim_thompson5910(28598)

Question 117688: This data represents the population of a certain geographic region.
Year Population (in millions)
1950 34
1960 38
1970 43
1980 47
1990 50
2000 55
a) Draw a line graph for the data.
b) Use the line graph to predict the population in the year 2010.

Click here to see answer by stanbon(57387)

Question 117704: How do you find the vertex of this quadratic equation?
y=x^2+6x+8
Click here to see answer by josmiceli(9697)

Question 117755: Solve the inequality and graph the solution
x - 5 < 3
Click here to see answer by jim_thompson5910(28598)

Question 117754: Solve the inequality and graph the solution.
y - 3 > or equal to 5
Click here to see answer by jim_thompson5910(28598)

Question 117759: solve
-6 < or equal to 3 + x < 4
Click here to see answer by jim_thompson5910(28598)

Question 117757: solve inequality and graph solution
5x < or equal to 20
Click here to see answer by jim_thompson5910(28598)

Question 117756: solve the inequality and graph the solution
2x + 7 > 5
Click here to see answer by jim_thompson5910(28598)

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