Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

Tutors Answer Your Questions about Linear-equations (FREE)

Question 35111: I need help to solve this
3(4-x)+5x=9
Click here to see answer by Prithwis(166)

Question 35114: Find 5 integer solutions to the following equation. Place in table.

3x + 7y = -24
x y
____ _____
____ _____
____ _____
____ _____
____ _____
____ _____
Click here to see answer by checkley71(8403)

Question 35125: I need to find the intercept point of y=3x+8 and 4x+2y=6. If you can find the answer, would you explain it to me? I also have a few more to do and I need to understand how to do it.
Click here to see answer by longjonsilver(2297)

Question 35159: Could you help me solve this problem.. 10x-2y=4
Click here to see answer by checkley71(8403)

Question 35275: I don't understand this. It's frustrating. I was doing just fine In this chapter untill getting to this point. Can someone give me a step by step on how to do this? I have to graph the line with the given slope that goes through the given point.
In this problem it's: Through (0,-2) with m=1/2
Click here to see answer by narayaba(40)

Question 35341:
Click here to see answer by crunked_3000(3)

Question 35397: How do you plot a linear graph with the equation of "y=x+2"?

Click here to see answer by lyra(94)

Question 35446: Here is the other equation I need help with: 4-(6x+6)=-(-2x+10)
Click here to see answer by Nate(3500)

Question 35445: We're reviewing past chapters and I need help figuring out how to solve two equations. This is one of them: 1/5(w+2)=w+4
Click here to see answer by Nate(3500)

Question 35457: Please help
Find the slope of any line parallel to the line through points (2, 1) and (9, 2).
Click here to see answer by askmemath(368)

Question 35456: Having a hard time solving this problem
Please help
Write the equation of the line passing through (1, 3) and (1, �1).
Click here to see answer by Nate(3500)

Question 35463: Need help!!!!!
Solve for x. 3x � 2y = 6
Click here to see answer by checkley71(8403)

Question 35463: Need help!!!!!
Solve for x. 3x � 2y = 6
Click here to see answer by stanbon(75887)

Question 35463: Need help!!!!!
Solve for x. 3x � 2y = 6
Click here to see answer by Nate(3500)

Question 35481: 1. Points A and B are 100 km apart on a highway. One car starts from A and another from B at same time. If the cars travel in the same direction at a constant speed,they meet in 5 hours. If the cars travel towards each other, they meet in 1 hour. What are the speeds of the two cars?
Click here to see answer by venugopalramana(3286)

Question 35568: find the slope intercept of the equation of the line that is parallel to the graph 3x +4y=8 and passes through (2,11).
Click here to see answer by venugopalramana(3286)

Question 35714: Joe Tyson is the place kicker for his college football team. Last season he kicked 38 times and never missed. Each field goal scored 1 point for a total of 70 points. How many field goals did Joe kick last season?
Click here to see answer by Nate(3500)

Question 35149: Please explain to me how to answer this question on my graphing calculator.......A company finds that the cost C to produce x items is C=560+12x, while the revenue is R=20.7. Find the break even point. Provide 2 tables to justify your answer.
X C
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X R
___ ___
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Please help me to understand how to enter this into the calculator....Thank YOu, Tasha
Click here to see answer by stanbon(75887)

Question 35725: If the equationof a line isy=1/3x+2then
a.Give an exampleof an equation of another parallel to this one.
b. Give an example of a line perpendicular to this one.
Click here to see answer by rapaljer(4671)

Question 35724: Find the equation of the line slope1/2 that contains the point(-1,5). please show all work.Ronnorton@adelphia.net
Click here to see answer by venugopalramana(3286)

Question 35785: solve the given system by substitution:
5x-3y=7
x-6y=-4
Click here to see answer by checkley71(8403)

Question 35844: How would you do the problem of 3x-4=x+10?
Click here to see answer by usyim88hk(158)

Question 35865: 7x-20= 6y
-4x-2y= -44
solve the system
Click here to see answer by ilana(307)

Question 35885: can someone tell me if these answers are right, thank you
QUESTION:if line has a slope of 0, what can you say about the vertical coordinates of each of the points on the line?
MY ANSWER:vertical is undifined
QUESTION:if a line has an undefined slope, what can you say about the horizontal coordinates of each of the points on the line?
MY ANSWER:horizontal is 0
Click here to see answer by longjonsilver(2297)

Question 35884: i seen similar questions like this but i still did not understand, can someone please help me?
Question:
find an equation for each line:
a line of slope 4 passing through the point (0,2)
a line of slope -5 passing through the point (3,4)
a line of slope 0 passing through the point (1,2)
any help in greatly appreciated, thanks
Click here to see answer by venugopalramana(3286)

Question 35921: This problems's just like the last one. How do I simplify it?
z to the -11th/z to the -12th
Click here to see answer by Prithwis(166)

Question 35955: I am not sure how to use the x-intercept and the y-intercept to gragh this equation, y= x+1
Click here to see answer by checkley71(8403)

Question 36037: Please show me where the x-intercept and y-intercept are located in the provided problem:
3x-y=3
Thank you for your attention
Click here to see answer by rapaljer(4671)

Question 36117: My pre-algebra teacher,Mrs.Sanders, assigned a worksheet called Linear Equations and Inequalities.Then below that it says system of Equations: Substitution Method.
The example is as follows;
x-5y=10
-2x=y=7 then arrow points over y=2x=7
x-5(2x+7)=10
x-10x-35=10
-9x-35=10
-9x=45
x=-5 then it says th solutionis (-5,-3)
And I have no idea how they got this,so can you help me out?
Click here to see answer by qwe123a(7)

Question 36114: one question please
when graphing a linear inequality how do we know if the inequality represents the area above the line.
Click here to see answer by ilana(307)

Question 35160: Hi,
Could someone please answer this. Thanks
Which system(s) of equation has no solution?
1. y = 3x - 1 and y = -3x +1
2. y = 1.5x-2 and y = 3/2x + 2
3. x+y = 1 and y = -x +3
4. 2x + y = 4 and 2y = 4x + 2
Click here to see answer by stanbon(75887)

Question 36204: Thank you so much for your time.
log2(log2(x))=1

Click here to see answer by stanbon(75887)

Question 36257: Can someone help me?
Find the equation of the line, in slope-intercept form, of the line that passes through the point (1,4) with slope 3.
Click here to see answer by Prithwis(166)

Question 36259: What is the slope of the line parallel to the line 4x+y=7?
Help, I haven't done this in forever!
Click here to see answer by checkley71(8403)

Question 36301: y=x-9 (7,10) find the point for a slope
Click here to see answer by checkley71(8403)

Question 36388: Write the standard form of the equation of the line with slope -4 passing through the point (2,-5). Can some help
Click here to see answer by Prithwis(166)

Question 36387: A line goes through the point (3,4) and has slope 3/5, Graph this line.
Can someone help!
Click here to see answer by rapaljer(4671)

Question 36593: Why is it true that any two points satisfying a linear equation will give you the same graph for the line represented by the equation?
Please Help
Click here to see answer by venugopalramana(3286)

Question 36729: Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coin does she have?
Click here to see answer by checkley71(8403)

Question 36734: . Solve the following system by substitution.
4x � 12y = 5
-x + 3y = -1

Click here to see answer by Cintchr(481)

Question 36733: . Solve the following system by substitution.
8x � 4y = 16
y = 2x - 4

Click here to see answer by Cintchr(481)

Question 36732: . Solve the following system by substitution.
5x � 2y = -5
y � 5x = 3

Click here to see answer by Cintchr(481)

Question 36735: . A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture?
Click here to see answer by venugopalramana(3286)

Question 36730: A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture?
Click here to see answer by venugopalramana(3286)

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