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

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Question 700414: Please help me to solve this:
1. Using the slope-intercept form of a line, find the equation of the line with slope 3/2 and
y-intercept �2. Then graph the line and explain how you determined your graph.

Thanks.
Click here to see answer by fcabanski(1391)

Question 700481: graph the linear inequality y>-2x +4

Click here to see answer by MathLover1(20849)

Question 700598: Which equation has a graph that goes through points (2,3) and (-1, -5)?

Click here to see answer by jim_thompson5910(35256)

Question 700581: 3x + 1 = y how do you answer and graph?
Click here to see answer by checkley79(3341)

Question 700650: how do you find the coordinates of the vertices of a triangle for the equations y=2x+6, 4x+2y=12, and y=2
Click here to see answer by solver91311(24713)

Question 700691: A jet can travel 4550 km in 5 hours with the wind. The return trip against the wind takes 6.5 hours. Find the rate of the jet with no wind.
Click here to see answer by lynnlo(4176)

Question 700783: How do I find y for this equation? 2x-y=1 I don't understand how to solve it and then graph it along with y=-3.
Click here to see answer by jpvn2015(54)

Question 700783: How do I find y for this equation? 2x-y=1 I don't understand how to solve it and then graph it along with y=-3.
Click here to see answer by KMST(5328)

Question 700783: How do I find y for this equation? 2x-y=1 I don't understand how to solve it and then graph it along with y=-3.
Click here to see answer by ankor@dixie-net.com(22740)

Question 700953: a. Choose a third animal. Calculate its speed in yards per second. Compare its speed with the speed of the other two animals you chose in Activity 1.
the first two animals i chose were :
fox 20.53 yards per second
and a coyote 21.02 yards per second
the third animal i chose is Zebra travels 40 m/hr (19.56 yd/sec)

a. Compare the zebra's speed with the speed of the two other animals
b. Decide which two animals should get head starts and how much of a head start each should get. Write three equations relating distance from the starting line to time.
c. Graph all three equations on the same coordinate plane.

I'm really stuck here and don't know what to do, could anyone please help me and also explain how i should do this? especially c. how should i graph them?

I would really appreciate it if you would help me out.

Click here to see answer by stanbon(75887)

Question 700932: solve the quadratic equation by graphing the realted function
2x^2 + 4x-6=0
Click here to see answer by Stitch(470)

Question 700973: Write an equation in slope-intercept form of the line that passes through the points (-4,2) and (1,-1).

Click here to see answer by MathLover1(20849)

Question 700985: Can the graphs of two linear inequalities be drawn with the given intersection? It would be great if you would answer the question for all four intersections given.
a. a point
 b. a line
 c. a region
 d. no intersection

Click here to see answer by solver91311(24713)

Question 700926: Hi, I'm new here and hope this is the right topic for my question(s)...
I have some problems with my math project. I have problems with c. d. and e. i'll add a. and b. too though so you know what i've done here already :
1. Pick two animals to be in a race and answer the following questions.
a.) Suppose two animals are in a race. Choose the two animals and calculate the speed of each animal in yards per second.
I chose a fox with 20.53 yards per second and a coyote with 21.02 yards per second.
b. Decide how much of a head start (in yards) the faster animal offers the slower animal. For each animal, write an equation relating distance from the starting line to time.

I also got this.
The fox gets 10yd head start.
fox: x = 20.53y + 10 (because of the 10yd head start he got)
coyote: x = 21.02y

now here comes where I don't know what to/ how to do it.
c. Graph the two equations on the same coordinate plane. ( Now this is my problem)
I don't know how to graph and where they would go/etc.

d. How long will it take the faster animal to overtake the slower animal? How
many yards from the starting line are the animals when the faster animal
overtakes the slower animal?

now e. is the last part i added a screenshot for it : http://i49.tinypic.com/350rk.jpg

Now there's also a second part of this, but I don't want to ask too much of you.
I hope that you can help me and that I did not confuse you with my writing, I'm not native english. I would really appreciate it if you could help me out here and also explain so I can understand how you got to the answer and so i'll know what to do next time when i will have a problem like this.
Click here to see answer by ankor@dixie-net.com(22740)

Question 701031: solve 3x-1
Click here to see answer by solver91311(24713)

Question 701010: Hello,
I'm having problems with these 3 questions about intersections. We are going through this in class at the moment, but I didn't understand anything and our teacher thinks we did not listen if we ask questions... it's all very weird but anyway here are the problems. :
3. Compare the possible intersections of two lines with possible intersections of the graphs of two linear inequalities. What do you notice?

4. Find the possible intersections of more than two lines. Support each possibility with a diagram or an explanation.

5. Find the possible intersections for the graphs of more than two linear inequalities. Support each possibility with a diagram or an explanation.

could you please help me out here? and explain too? please.

Click here to see answer by stanbon(75887)

Question 701075: using elimination method please solve x+y= -1 x-y= 7 to get an ordered pair answer.
Click here to see answer by Alan3354(69443)

Question 701106: x+y=9 x=2y solve with substitution method and can you give me the answer
Click here to see answer by MathLover1(20849)

Question 701103: x+y=9 x=2y solve with substitution method
Click here to see answer by rfer(16322)

Question 701096: solve by graphing 4x+y=0 3x-y=7
Click here to see answer by lynnlo(4176)

Question 701350: 2(0)+3y=12

Click here to see answer by rfer(16322)

Question 701351: Graph this equation
y = 2x + 4
Click here to see answer by strawberrygirl183(35)

Question 701320: can you help me find the slope intercept form of the following conditions
x-intercept 3,
the y intercept 2/3
Click here to see answer by neatmath(302)

Question 701457: Solving equations by graphing and substitution
solve by graphing
0 = -2y - 7x +6
0 = x + 2y + 6

Click here to see answer by Earlsdon(6294)

Question 701558: slope = 2/3 (-3,4) graph the line
Click here to see answer by stanbon(75887)

Question 701599: use the intercepts to graph the equation
4x-8y=32
Click here to see answer by jim_thompson5910(35256)

Question 701629: How do I graph x2-y=0
Click here to see answer by Alan3354(69443)

Question 701695: I need help
Click here to see answer by jim_thompson5910(35256)

Question 701661: The question I am stumped on is
What value should you plug in for t in order to make the lines parallel?
R=tx + 4
2R-3x=5
I know that parallel lines have the same slope, but different y-intercepts
Click here to see answer by ankor@dixie-net.com(22740)

Question 701800: Hi, I'm trying to solve this:
Graph the function: 2x^2-x-3 in the Domain -1<=x<=5.
What I've found so far is (-1,-2) and (5, 42) is this solution correct?
please help if possible
Click here to see answer by josgarithmetic(39616)

Question 701855: how would I graph
x+y=4
2x+y=6
usings system of equations
Click here to see answer by mouk(232)

Question 701899: the line through (4 2) and (8 5) in slope-intercept form
Click here to see answer by mouk(232)

Question 701988: (1) Horizontal distance between (-3,1) and (2,1).
(2) Horizontal distance from (-3,1) to y-axis
Please show the work because I have other problems with the same directions
Click here to see answer by Edwin McCravy(20054)

Question 701937: Draw a graph for each inequality
x>2
Click here to see answer by jim_thompson5910(35256)

Question 702182: graph x > y linear inequality
Click here to see answer by MathLover1(20849)

Question 702251: please tell me what is the ordered pair for graphing -5x+y= -3
Click here to see answer by DrBeeee(684)

Question 702202: Please help me and explain how to solve this problem. Thank you.
The path of an arrow shot into the air is h=144t-16t^2 where h is the height in feet above the ground t seconds after it is released. Graph the equation to find what period of time the arrow is above 224 feet.
Click here to see answer by neatmath(302)

Question 702208: Write equations for the horizontal and vertical lines passing through the point (-5, -8)
Click here to see answer by neatmath(302)

Question 702280: slope of, y=x^2
Click here to see answer by neatmath(302)

Question 702408:
In an isosceles triangle the base is represented by x and each leg is four times as long as the base. Write and solve an inequality to represent: The perimeter of the isosceles triangle is at least 45

Click here to see answer by checkley79(3341)

Question 702467: How to solve the following equation by graphing.
16x+7y= -49 2x+7y= 49
I am having difficulty drawing the graph, I have answer choices for the ordered pair, and I know the answer, I just can't figure out how to draw the graph.
Click here to see answer by josgarithmetic(39616)

Question 702644: SOlve this linear equation:

Click here to see answer by josgarithmetic(39616)

Question 702740: what is the answer to the slope of -2 an y-intercept of 0
Click here to see answer by Alan3354(69443)

Question 702765: Solve for y: 2x-5y=15
Click here to see answer by ReadingBoosters(3246)

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