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

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Question 567453: Describe how you would determine an equation for a line given the ordered pairs for two points on that line.
Click here to see answer by mananth(16946)

Question 567462: y < 3x + 2
y >= -2x + 0
i have to get the solution i was given a hint: the point lays on line with the equation; y = -2 + 4x
IT MAKES NO SENSE
pliz help me :/

Click here to see answer by scott8148(6628)

Question 567454: What type of line would be impossible to find its equation using the point-slope form method? Why?
Click here to see answer by richard1234(7193)

Question 567452: How many ordered pairs should one find as solutions to a linear equation with two variables? Please explain.
Click here to see answer by richard1234(7193)

Question 567544: Are the graphs of the lines in each pair parallel? Explain.
Y = -3/2x + 2
3x + 2y = 8
Click here to see answer by unlockmath(1688)

Question 567551: What is the equation of the line which includes points (1,5) and (-2,-7)?
Click here to see answer by lwsshak3(11628)

Question 568350: The order pair (1, -2) is a solution of the following system:
x + y = -3
x - y = 1
Click here to see answer by richard1234(7193)

Question 568498: 7x+y=6
35x-30=-5y
without graphing answer the following questions about the system.
1. Does the system have one solution, no solution, infinite solution?
2. Is the system inconsistent, are the equations dedendent, or neither?
3. What does the graph look like interesecting lines, one line,Parallel lines?
Click here to see answer by stanbon(75887)

Question 568516: y+x=3

Click here to see answer by jim_thompson5910(35256)

Question 568714: How would you graph -2y=4x+8? I am not sure where to put the points on the graph?
Click here to see answer by solver91311(24713)

Question 568933: If I have the inequality: (2 is greater than or equal to X) , would that inequality be expressed with a closed dot on the two, and an arrow pointing to the left, or a closed dot on the two, and an arrow pointing to the right?
Click here to see answer by bucky(2189)

Question 569088: solve using either addition or subtraction method
4x-6y= 5
2x-3y= 7
Click here to see answer by Alan3354(69443)

Question 569129: How do you graph the equation y=x+9 ?
Click here to see answer by jim_thompson5910(35256)

Question 569430: how do you graph f(x)= -(1/2)
Click here to see answer by stanbon(75887)

Question 569430: how do you graph f(x)= -(1/2)
Click here to see answer by josmiceli(19441)

Question 569548: I'm in a study hall right now and I've gone to the math wing to ask for help but they're in a meeting. my question is, Find the slope of f(x) where 2 <(or equal to) x <(or equal to) 10. There's a graph with this problem but I don't know how I'd show it to you. Thanks!
Click here to see answer by bucky(2189)

Question 569599: (3x+2)(x-5) solve please
Click here to see answer by Alan3354(69443)

Question 569644: Use a graphing utility to approximate the real solutions, if any, of the given equation rounded to two decimal places. All equations lie between -10 and 10.
x^4 - 3x^3 + 6x - 2=0
Click here to see answer by josmiceli(19441)

Question 569689: x=10 How do you come up with answer 10 for x?
Click here to see answer by JBarnum(2146)

Question 569814: How do you write m=6, b=-4 in slope intercept form?
Click here to see answer by richard1234(7193)

Question 570299: finding the angle made by a vector with another..
In the following problem,:
a,b,c are three unit vectors such that
ax(bxc)=b/2
all of a,b,c being vectors.find the angle a makes with b and c...(b and c being non-parallel)
used the formulae for cross product but i did not get the solution to this problem.

Click here to see answer by Alan3354(69443)

Question 570712: Can you solve this by graphing?
y = -3x+3
6x+y = 6
The solution set is what? Type an ordered pair ( )

Thank you!
Click here to see answer by mananth(16946)

Question 570735: I've been trying to help my daughter, but it's been too long since I've done any algebra. She is currently in graphs, but this does not seem to fit. Anyway, here is the question posed.
A rectangular hole 2cm wide and x cm long is cut in a rectangular sheet of metal 7/2cm wide and y cm long. The length of the hole is 1 cm less than the length of the metal sheet. After the hole is cut, the area of the remaining metal is 11cm squared. Find the length of the hole and the length of the metal sheet.
I'm math stupid and having a difficult time trying to find help.
Thank you for any suggestions,
Jeff R.
Click here to see answer by scott8148(6628)

Question 570738: Hello, I am having trouble grasping how to match an inequality with its graph.
EX.- 5y-2x(less than or equal to) 10

Click here to see answer by mananth(16946)

Question 570690: A number greater than 1 is called a ______ ________.
Click here to see answer by richard1234(7193)

Question 570864: What is the equation of the line which includes points (-3, 2) and (1, 6)
Click here to see answer by Alan3354(69443)

Question 570959: simplify -1[-75-(39-16) ] =
Click here to see answer by jim_thompson5910(35256)

Question 571004: y+-3/5x+4 does it go down 3 right 4
y=2x-14 does it go up 2 right 1
y=3/7x does it go up 3 left 7
y=5 does it go up 5 left 1
Click here to see answer by Alan3354(69443)

Question 571095: six donuts were bruoght at the same price for three dollars what is the greatest number of donuts that can be bought for seven dolars
Click here to see answer by stanbon(75887)

Question 571119: What is the slope and y-intercept of 30x+5y=20
Thanks
Click here to see answer by mananth(16946)

Question 571181: How would the following equation be represented graphically:
-3x+y=4
Click here to see answer by Alan3354(69443)

Question 571302: Scenario: Advertiser's of a new refrigeration process claimed that the temp of a freezer, which starts at -2 degrees Celsius, can be reduced by 1 degree per minute.
To write an expression, define a variable for the time in minutes use this variable to write a rule for the temperature.
I already have a predone graph that goes from 5 to -5 degrees on the vertical and on horizontal it goes from -5 to 5 in time. There is also a predetermined diagonal line on the graph that spans from 3 degrees celsius on the horizon to 3 degrees on the time line and on this line it has a dot at intersecting point -2 celsius and 0 on the minutes, it also has one below that on -3 degrees and 1 on minutes.
At the bottom of the graph the question asks to enter the y intercept of the line and then asks to enter the slope of the line. I'm failing 9th grade algebra and I dont quite understand the question so any help would be greatly appreciated and if you could explain how its done to where I could possibly understand it would be even better. Thank you in advance.
Click here to see answer by KMST(5328)

Question 571697: h= -2t^2. I need to find the value for h and t, and than plot the relaitons over the range of -3 to 3, not sure how to do this.
Click here to see answer by Alan3354(69443)

Question 571698: How do I graph y= -2x + 2 over a range -3 to 3?
Click here to see answer by KMST(5328)

Question 571698: How do I graph y= -2x + 2 over a range -3 to 3?
Click here to see answer by Alan3354(69443)

Question 571696: z= 3f^0 Plot each algebraic relations over the range -3 to 3 for independent variable. Not sure how to graph this at all. Detailed explenation would be much help. Thankyou
Click here to see answer by Alan3354(69443)

Question 571903: Hello I've got 4 questions I really need your help with. Please help me. I need it asap. Thank you
1. Find the y-intercept and the x-intercept for the equation.
-10x+y=14
What is the y-intercept?

What is the x-intercept?

2. Graph the equation and identify the y-intercept.

x+3y=12

3. Solve.
8y-8<7y-1

4. Find the slope if it exists.

x+7y=14
m=

Click here to see answer by mananth(16946)

Question 571921: Please help me solve this. I need it asap. Thanks
1. Find the y-intercept and the x-intercept for the equation.
-10x+y=14
What is the y-intercept?

What is the x-intercept?
Click here to see answer by Maths68(1474)

Question 571926: Graph on a coordinate plane
x > 2y
Click here to see answer by Edwin McCravy(20055)

Question 572109: Find an equation of the line having the given slope and containing the given point.
m=2/3, (2,-8)
Click here to see answer by nyc_function(2741)

Question 572657: How do you write an equation that is parallel to y=4x-3?
How do you write an equation that is perpendicular to y=4x-3?
Click here to see answer by josmiceli(19441)

Question 572730: if one line has a slope of -3 and another has a slope of 2, which line is steeper? why?
Click here to see answer by richard1234(7193)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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