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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 116163: write the equation y=3x-12 in standard form.
Click here to see answer by jim_thompson5910(28705)

Question 116145: When graphing two linear equations, what is the signifiance of the intersection of the two graphs. ans if there is no intersection?
Click here to see answer by Fombitz(13828)

Question 116161: Joe has a collection of nickels and dimes that is worth $6.00. If the number of dimes were doubled and the number of nickels were increased by 6, the value of the coins would be $9.90. How many dimes does he have?
Click here to see answer by keerthu(5)

Question 116179: what would the graph of the line 2x-3y=9 look like?
Click here to see answer by jim_thompson5910(28705)

Question 116253: Find the slope of the line passing through the points (8, 2) and (10, –2)
Click here to see answer by jim_thompson5910(28705)

Question 116228: #1
Write the equation of a line in y= form, through the point (-2,5) and (3,4).
I have found the first part of the problem by doing y2-y1 over x2-x1 and that gave me -1/5. But I do not understand how to do the rest of the problem and write out the answer.
#2
Find the slope and y-intercepts of the given line: 4x-5y=16.
What steps do I take to solve this problem?
Click here to see answer by bucky(2189)

Question 116206: Driving down a mountain, Tom finds that he has descended 1800 ft. in elevation by the time he is 3.25 mi. horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth.
My first two equations I have so far is this: y=3.25x-1800 then y=325/100x-1800
Am I correct on the first two steps to continue?
Thank You,
Barb Neely
Click here to see answer by edjones(7569)

Question 116283: Can you help me with these questions? I did not get this out of a book, it was a handout. The question is: Find the x and y intercepts and then graph
x-y=2 , -x+4y=4 and y = -4x -4. I do not fully understand the question.
Any help on this is greatly appreciated. Can you explain it step by step, not leaving anything out , please.
Thankyou
Laurie
Click here to see answer by ankor@dixie-net.com(15746)

Question 116327: Hello, can you help me solve this graphing problem? I need to find the x and y intercepts and then graph -x+4y=4 and y = -4x-4.How do I go about finding out the intercepts, what do they want me to do? This is from my homework and is not in a book.Can you help me please and explain step by step?
Thanks
chama
Click here to see answer by bucky(2189)

Question 116277: Can you please help me step by step on this type of linear equation. The equation is x-4y=8. I know I have to rewrite it, I'm not sure how.Also can you help me find plotted numbers for it and graph it.I would like it step by step not leaving anything out. I need to know exactly where you got every number and plot.That's the only way I can learn. Thank you so much it would be a great help.I do have another one ,which is y=4x ,can you do the same for this one?
Thanks again
Laurie
Click here to see answer by ptaylor(2052)

Question 116423: if I need to solve for x how would I work this one out?
-2 (6x - 8) = -20 + (2)(4)
Click here to see answer by stanbon(57962)

Question 116455: Can you please show me how to solve this problem step by step please ? 0.8-4(X-1)= 0.2 + 3(4-X).I just need to see how the process works and why you apply those steps to the problem.
Click here to see answer by ankor@dixie-net.com(15746)

Question 116515: A recording artist is offered two deals for her fourth CD release:
.Royalty only: $1 per CD sold
.Partial Royalty: $2000 plus $0.50 per CD sold
a)Graph both linear relations on the same grid.
b)Find the solution to the linear system and explain what it means.
c)Sales figures for the artist's first three CD's are shown.
CD Copies Sold
1 1500
2 3500
3 6000
Which deal do you think the artist should choose? Explain your reasoning.
Click here to see answer by solver91311(17077)

Question 116563: solve system by graphing y=-2/3x
2x+3y=5
Click here to see answer by chitra(359)

Question 116469: write each equation in point-slope form of the line that passes through the given point and has the given slope.
(1,-4) m=-1
Click here to see answer by jim_thompson5910(28705)

Question 116652: Graph the following solution.
2x-3y=12
Click here to see answer by checkley71(8403)

Question 116648: Which order pair is a solution for this equation?
3x+4y=12 (0, ), (, 3/4), ( ,0) , (8/3, )
Click here to see answer by edjones(7569)

Question 116650: Graph the following solution.

2x+3y=6
Click here to see answer by checkley71(8403)

Question 116655:
y=1/2x+3
Click here to see answer by checkley71(8403)

Question 116687: find the slope and y-intercept of the graph of each equation.
1. x = 2y - 7
2. y = 1/4x + 3
Click here to see answer by checkley71(8403)

Question 116687: find the slope and y-intercept of the graph of each equation.
1. x = 2y - 7
2. y = 1/4x + 3
Click here to see answer by camp55(1)

Question 116687: find the slope and y-intercept of the graph of each equation.
1. x = 2y - 7
2. y = 1/4x + 3
Click here to see answer by jim_thompson5910(28705)

Question 116697: I need to know how to do graph liner system
Click here to see answer by an(14)

Question 116765: 3y+6>0
Click here to see answer by jim_thompson5910(28705)

Question 116818: Solve each literal equation for the indicated variable:
2x + 3y=6 (for x)
Click here to see answer by jim_thompson5910(28705)

Question 116847: 0.8 - 4(X-1) = 0.2 + 3(4-X), I had this one solved the other day and it was correct, but I was told that I did not have it in the right steps according to my project directions. Step 1-“Simplify each side separately. step2-Isolate the variable term on one side,step 3“Isolate the variable (x= a number)and step 4-“Check. Substitute the proposed solution . Can someone please explain this to me ? I don't understand how to show the problem step by step like that.
Click here to see answer by bucky(2189)

Question 116845:

2[4 – 2(3 – x)] – 1 = 4[2(4x – 3) + 7] – 25 can you help me solve this and show me how to work it out ? I understand that there are different ways. Can someone please show me some ? Thanks

Click here to see answer by checkley71(8403)

Question 116989: graph Y = 1/4x + 2 ???
Click here to see answer by jim_thompson5910(28705)

Question 117026: 11-4(x+1)-3=11+2(4-2x)-16 I have to solve it in 4 steps.Step 1-“Simplify each side separately. step2-Isolate the variable term on one side,step 3“Isolate the variable (x= a number)and step 4-“Check. Substitute the proposed solution . Can someone please explain this to me ? I don't understand how to show the problem step by step like that. Thank you.

Click here to see answer by jim_thompson5910(28705)

Question 117031:
What is the slope, x-intercept, and y- intercept of 2x-3y+18=0?
Click here to see answer by checkley71(8403)

Question 117051: THE EQUATION: 2(X-2)=X+3
FIRST STEP IN SOLVING: 2X-2=X+3
WRITE A CLEAR EXPLANATION OF WHAT ERROR HAS BEEN MADE. WHAT COULD BE DONE TO AVOID THIS ERROR?
Click here to see answer by edjones(7569)

Question 117041: 7(3x+4)=8(2x+5)+13
2(x-3)-3(x+5)=3(x-2)-7
3x-5(3x-7)=2(x+9)+45

Click here to see answer by jim_thompson5910(28705)

Question 117024: 2[4 – 2(3 – x)] – 1 = 4[2(4x – 3) + 7] – 25 I need help solving this. I have to once again complete 4 steps and I was sent the correct answer, but once again the steps did not match. Any help would be great.Step 1-“Simplify each side separately. step2-Isolate the variable term on one side,step 3“Isolate the variable (x= a number)and step 4-“Check. Substitute the proposed solution . Can someone please explain this to me ? I don't understand how to show the problem step by step like that.''.

Click here to see answer by stanbon(57962)

Question 117144: Graph the linear equation
x = -3y
Click here to see answer by MathLover1(6810)

Question 117156: I have my final tomorrow and cannot figure these problems out. I need to know HOW to work the problem out.
1. Find the slope and the y-intercept for the follwing equation of a line.
y=1/3x-2/3
2. same as above but for 6x + 3y = 12
Click here to see answer by jim_thompson5910(28705)

Question 117161: solve the equation using the -b +/- square root of b squared-4(a)(c)divided by 2a
1. I know the formula I just cannot figure this out.
x squared = 196
Also if you can help with another.
x squared -4x +2 = 0
Click here to see answer by jim_thompson5910(28705)

Question 117149: Find the slope of the line that goes through the given points.
(17,-6) and (7,8)
Click here to see answer by jim_thompson5910(28705)

Question 117171: Graph 4x-2y=10
Click here to see answer by jim_thompson5910(28705)

Question 117171: Graph 4x-2y=10
Click here to see answer by checkley71(8403)

Question 117179: graph by x and y intercept -2x+5y=10
Click here to see answer by jim_thompson5910(28705)

Question 117160: Solve the system of the equations. I need to know how to work this problem out.
1. -2x-6y=-2
2x +3y=5
(this is all one problem)
2. 4x+y=5
2x-5y =19
Click here to see answer by checkley71(8403)

Question 117159: Solve the system of the equations. I need to know how to work this problem out.
1. -2x-6y=-2
2x +3y=5
(this is all one problem)
2. 4x+y=5
2x-5y =19
Click here to see answer by checkley71(8403)

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