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

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Algebra: Linear Equations, Graphs, Slope

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Question 14871: 4(3y-1)+13=5y+2
Answer is..Y = ?
Click here to see answer by jb007mi6(53)

Question 14926: Find the distance from the point (9,5) to the line 4x - 3y = -4
Click here to see answer by khwang(438)

Question 14974: Thank you for the help!
4-3x-2<-x+7+2x
could have the answers
a) x>-5/4
b) x<-5/4
c) x>5/4
d) x-5/4 Thank you again!
Click here to see answer by jb007mi6(53)

Question 14975: I must find a linear equation in slope-intercept form that models the following description. I must also indicate what each variable represents.
In 1995, the average temperature on Earth was 57.7 degrees F and has increased at a rate of 0.01 degrees F per year since then.
My guess of the equation would be: y=.01x + 57.7
y=the temperature
x=number of years
Click here to see answer by rapaljer(3620)

Question 14313: 1. Two points, as we know, determine a line segment. To compute the
slope of the line, we can take the points in either order. Explain WHY
this is so. Give an example to help explain.

Click here to see answer by venugopalramana(3286)

Question 14337: Can you pleae help me with these two questions:
The table of ordered pairs shown was generated by a graphing calculator
a. What is the x intercept
b. Find the slope of the line.
x y
0 1
-2 0
-4 -1
Click here to see answer by venugopalramana(3286)

Question 15268: I have a question concerning functions. How would you go about solving this problem: f(f(2)) and f(2f(1))
Click here to see answer by rapaljer(3620)

Question 15355:
Click here to see answer by rahman(247)

Question 15355:
Click here to see answer by jasmyne8907(1)

Question 15401: 2/3 x=9
2x+1=9
2x-8
4x=3x+4
6x+3=5x
7/8 (x-2) = 3/4 - 1/8 x
3x-0.54=2x (x-0.15)
Click here to see answer by rapaljer(3620)

Question 15637: find two consecutive intergers such that the sum of the first and 3 times the second is 55
Click here to see answer by pwac(251)

Question 15585: Not sure if this is a linear equation as it has an unknown exponent, but hope you can help with solution.
Find x:

Thank you for your help.
Click here to see answer by rapaljer(3620)

Question 16353: What is the slope and y-intercept whose equation is 4y=8x-8
Click here to see answer by kikerkins(17)

Question 15323: y=-6x find a parallel line to it? and what is the slope
Click here to see answer by kikerkins(17)

Question 16529: Please help me figure this one out.
Find the value of K so that the line through (3,K) and (-1,5) is parallel to
the line x + 2y = 4.
I substituted zero for y and got x = 4 for x intercept (4,0)
Then substitued 1 or y and got x = 1 for point (1,1)
Where should I go from here. Thanks for any help!
Click here to see answer by Earlsdon(4900)

Question 16528: Can anyone help me solve this?
If the line Kx - 2y = 6 has the same x and y-intercept, what is the value of K?
I'm not sure what to do with this.
I substituted zero for x and got
-2y = 6
y = -3
which would mean a set of points (0,-3) but how would that be the same
intercept for both x and y.
Any help would be very appreciated.
Click here to see answer by Earlsdon(4900)

Question 16545: The solve the system using the Linear combination mathod.
21x-8y=-1
9x+5y=8
Click here to see answer by kikerkins(17)

Question 16762: 8x-9=39
Click here to see answer by pwac(251)

Question 16680: please help me solve this equation y=3x-2
Click here to see answer by xcentaur(357)

Question 16971: Graph
How can I solve y=2x -3
Click here to see answer by Ms Ladii(3)

Question 16930: what is the equasion of the line parallel to y=4x-3 through the point (-1, 2)
Click here to see answer by venugopalramana(3286)

Question 17258: Hi! I am having problem with solving a system by the addition method.
This is one of my problems:
2x + 3y = 1
5x + 3y = 16
2x + 3y =1
-5x - 3y = -16
-3x - 2y = -15
-3x = 2y - 15, I'm not sure where to go from here as far as working the problem out. Your help is greatly appreciated. Thank you!!
Click here to see answer by josmiceli(3007)

Question 17305: can u show me the steps for this problem 24-[10-(3-7)]+(5-7)3
Click here to see answer by akmb1215(68)

Question 17308: can u show me the steps for this problem 24-[10-(3-7)]+(5-7)3
Click here to see answer by mmm4444bot(95)

Question 17282: Hello! I am trying to solve the system by substitution, this is what I have so far:
5x - 2y = -5
y - 5x = 3
-2y = -5x - 5
y = 5x + 3
-y = 2
5(2) - 2y = -5
10 - 2y = -5
2y = -10 - 5
2y = -5
If I ended this way it would give me a fraction, can a fraction be used with this? Your help is greatly appreciated! :)

Click here to see answer by rapaljer(3620)

Question 17341: Martina leaves home at 9 A.M., bicycling at a rate of 24mi/h. Two hours later, John leaves, driving at a rate of 48mi/h. At what time will JOhn catch up with Martina?
I have been trying to figure this out for several hours now. Is this a trick question, because I cannot figure it out. I know that distance= rate times time (d=r x t), but it doesn't give the distance.
Click here to see answer by venugopalramana(3286)

Question 17266: the line y=3/5x + 1/4 intersects the line y=-1/8x + r at the point (-1/2,-1/20) for what value of r?
Click here to see answer by venugopalramana(3286)

Question 17349: Hi can you help me solve this equation?
3(2x-1)=5(3x-15)
hope you can help
Click here to see answer by venugopalramana(3286)

Question 17348: Hi can you help me solve this please?
5(x+3)=7x+5
hope you can help
Click here to see answer by venugopalramana(3286)

Question 17352: Hi i'm having a problem with this question
3(x+2)-2(3x-5)=10
hope you can help me out
Click here to see answer by venugopalramana(3286)

Question 17353: PLEASE HELP ME SOLVE THIS EQUATION!!!
4(2x-3)-3(3x-10)=11
Thankyou =)
Click here to see answer by venugopalramana(3286)

Question 17460: 4(2x+7)=108
Click here to see answer by tjnw79(57)

Question 17480: How do you find the slope of a line?
Click here to see answer by pwac(251)

Question 17392: evaluate for the following -6-(-9)
Click here to see answer by pwac(251)

Question 17210: Write an expression of the sum of 2 consecutive even integres where 2x is the lesser integer
Thank you for your help
Click here to see answer by pwac(251)

Question 17020: Solve problem by working backward
Nine is subtracted from a number, and then the difference is multiplied by 5. The result is 75. What is the number?
Click here to see answer by pwac(251)

Question 16986: if a linear equation is 3x=2y, do i subtract the 2y , making the problem 3x-2y=0? Is this right? thanks for your feedback! =)

Click here to see answer by pwac(251)

Question 17642: The equation of a straight line is given by 2y = 3x - 8 . What is the gradient of the line?
Click here to see answer by venugopalramana(3286)

Question 17648:
The directions in my Algebra book is to "graph this equation". I'm not sure how to do these problems, but if I have an example to look at, I think I can figure the other problems out. PLEASE HELP! Thank-you.
Click here to see answer by rapaljer(3620)

Question 17679: I need any information available about Paarlella lines
Gio

Click here to see answer by xcentaur(357)

Question 17723: HOW CAN I FIND THE EQUATION OF THE LINE PASSING THROUGH THE GIVEN POINTS?
AFTER YOU FIND THE EQUATION OF THE LINE PASSING THROUGH THE GIVEN POINTS HOW DO YOU FIND THE Y-INTERCEPT?
Click here to see answer by xcentaur(357)

Question 16995: how do I write the standard form for 7y = 2x + 5x

Click here to see answer by xcentaur(357)

Question 17884: I am trying to make sure my answer is correct.
-(-2+4x)-(3-4x)+5=-(-3+6x)+x+1
My answer is 0=x
Click here to see answer by whisper(27)

Question 17989: a straight line with the slope 5 contains the points (1,2) and (3,K). Find the value of K.
Click here to see answer by xcentaur(357)

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