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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 33593: Solve for y in terms of x
Y-b
____= m for y
X-a
I was thinking the answer is y-b=m(x-a)
but it the question is solve for y in terms of x and I'm not sure if this answer does that.
Thank you
Click here to see answer by Earlsdon(6294)

Question 33637: Graph the following inequality.
You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.

Click here to see answer by mszlmb(115)

Question 33648: Function notation
if g(x) = -3x + 2, find g(5n)

Click here to see answer by AnlytcPhil(1806)

Question 33663: I am having trouble figuring this out. Can someone help? Thanks
Suppose you have $30 in change in your drawer, consisting of dimes and quarters. Let x represent the number of dimes and y the number of quarters. Find an equation using x and y that represents the total quantity of change in your drawer.
Click here to see answer by SmartTutor101(1)

Question 33713: Determine the equation of each line (write in slope-intercept form):
1. The line through (-1, 3) with a slope 1/3.
2. The line through (3, 5) that is parallel to the x-axis.
3. The line through (0, 6) that is parallel to the line 3x + 5y = 15.
4. The line through (8, 0) that is perpendicular to the line x + y = 3.
Click here to see answer by venugopalramana(3286)

Question 33773: find the slope from the given equation: y = (-7/5)x+10
Click here to see answer by Nate(3500)

Question 33823: write the equation of the line from the given slope and Y-intercept:
M=9,Y-intercept=(0,-1) (I got y=9(x)+(-1) )
M=-3,Y-intercept=(0,-8) (I got y=-3(x)+(-8) )
Am I correct? thanks.
Click here to see answer by ice_water35(8)

Question 33821: find the slope from the given equation: 3x+12y=9
Click here to see answer by venugopalramana(3286)

Question 33866: I need to solve this.
-3+3x=-2(x+1)
Click here to see answer by ichudov(507)

Question 33867: How do I solve 2(2r-4)/5=3r+6/4-3/2
Click here to see answer by ichudov(507)

Question 33865: I need help solving this problem:
Problem #39: 2x+4=8

Click here to see answer by AnlytcPhil(1806)

Question 33871: what is x here?

14=3+2x
Click here to see answer by ichudov(507)

Question 33870: Can someone help me solve this problem?
-5a+3=2a+10
Click here to see answer by ichudov(507)

Question 33883: (1,1,) (0,3)
2x+y=3
Click here to see answer by Nate(3500)

Question 33928: Please help me solve this equation: 62=z-15
Click here to see answer by stanbon(75887)

Question 33931: I don't undrstand how to solve this
(-1/4)x=3/4. I have a tough time with fractions and I have a tough time with equations. So both of them together are even tougher.
Click here to see answer by fanism(39)

Question 33930: How do I solve this: -a/8=-7
Click here to see answer by fanism(39)

Question 33933: This is a word problem i do not understand how i figure this out please help sorry for the short notice but it is due in tomorrow which is Tuesday April 18, this question was not in the text book it was a peanuts comic strip with a word problem the teacher gave me..
A man has a daughter and a son.. The son is three years older than the daughter..
In one year the man will be six times as old as the daughter is now, and in ten years he will be fourteen years older than the combined ages of his children now..
What is the present age of the man..
Thanks sooo much for the help.. I really appreciate it.
Click here to see answer by stanbon(75887)

Question 33938: Write each equation in slope-intercept form:
1. 10 - x - 2y = 0
2. y + 8 = -3/4 (x+1)
Determine the equation of each line (write in slope-intercept form)
3. The line through (8, 0) that is perpendicular to the line x + y = 3
4. The line through (0, 6) that is parallel to the line 3x + 5y = 15

Click here to see answer by fanism(39)

Question 33945: A man has a daughter and a son.. The son is three years older than the daughter..
In one year the man will be six times as old as the daughter is now, and in ten years he will be fourteen years older than the combined ages of his children now..
What is the present age of the man..
PLease show me how you figured it out one tutor responded and said it was a negative number but i don't even know how to figure that out.
Click here to see answer by stanbon(75887)

Question 33943: The sum of two numbers is 40 the difference is 8 what are the two numbers ..
I know what the two numbers are.. its 16 and 24 but i dont know how to work the problem out so next time i have to do so how would i show my work or is it just the trial and error method? Thank you so much
Click here to see answer by ice_water35(8)

Question 33991: a lift A can carry 6 more people than a lift B by letting the number of people that B can carry be X state the number of people that A can carry
Click here to see answer by longjonsilver(2297)

Question 34029: I don't understand how to solve linear equations. What is 'a' in this problem?
-a/8=-7
Click here to see answer by ichudov(507)

Question 34034: Use Cramer's Rule to find the solution set of each system of Linear equations.
10. 4x-3y=5
2x+9y=6
Click here to see answer by venugopalramana(3286)

Question 34031: Solve the following systems of equations using the augmented matrix.
3. x-y+3z=-1
2x+y-z=0
3x-4y+z=1
Click here to see answer by venugopalramana(3286)

Question 34030: Solve the following systems of equations using the augmented matrix.
3. x-y+3z=-1 4. x+2y+2z=5
2x+y-z=0 2x+4y+7z=19
3x-4y+z=1 -2x-5y+2z=8
Click here to see answer by venugopalramana(3286)

Question 34037: how do I get x alone to solve it? 3(x-4)=2(x-8)+5x
Click here to see answer by xcentaur(357)

Question 34032: how do I solve this one?
-1/4x=3/4

Click here to see answer by xcentaur(357)

Question 34025: what does it mean when it says to write a rule for each function? I have the following
x f(x)
-1 -9
0 -5
1 -1
2 3
I get 1 for x and 4 for f(x) am I going in the right direction?
Click here to see answer by xcentaur(357)

Question 34035: what does t equal here? 5/6=5t-4/2

Click here to see answer by sarah_adam(201)

Question 34041: Can someone give me a step by step of how to solve this?
-27.23+x=9.77
Click here to see answer by sarah_adam(201)

Question 34036: I can't find what x equals here: 5.76-4.24-1.9x=27.864
Click here to see answer by sarah_adam(201)

Question 34045: I entered the wrong email address, so if this one's probably out in cyberspace somewhere. So here it is again:

Can someone give me a step by step of how to solve this?
-27.23+x=9.77
Click here to see answer by ichudov(507)

Question 34092: Please explain in detail, how to solve this please?
Solve the system of equations by substitution:
x + 2y = 9
3x - y = 13
Thank you for your assistance.
Click here to see answer by sarah_adam(201)

Question 34093: Can you explain in detail, how to solve this please?
Solve the system of equations by substitution:
4x - 3y = 1
12x - 9y = 3
Thank you so much!
Click here to see answer by Prithwis(166)

Question 34176: just solve

Click here to see answer by elephantsize(7)

Question 34167: How do you find the solution of system to an equation?
Click here to see answer by longjonsilver(2297)

Question 34086: Can you explain in detail how this is achieved and help me with this please?
Find the slope of the line that passes through the points (4, -7) and (-2, -5).
Thank you
Click here to see answer by kietra(57)

Question 34291: I am truly lost...the directions read, write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of each equation. the problem reads (2, -7), y=x-2
Click here to see answer by stanbon(75887)

Question 34313: I need an equation that is parallel to the line y = -3x +2 and passes through the point (0,3)
Click here to see answer by venugopalramana(3286)

Question 34299: Now this is a challenge for me. the question reads, write an equation in slope-intercept form of the line that passes through a given point and is perpendicular to the graph of each equation. problem #33 is (6, -13), 2x - 9y = 5
Click here to see answer by venugopalramana(3286)

Question 34297: My problem is (-5, -4) 2x + 3y = -1 i have to write an equation in slope-intercept form of the line that passes through the given point and is paralle to ther graph of each equation. these make no sense, I've tried tofigure it out a few times. NO LUCK help please
Click here to see answer by venugopalramana(3286)

Question 34292: I need to write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of each equation. my problem is (2,3) y = x+5 Please help, I'm lost on these kinds of problems.
Click here to see answer by venugopalramana(3286)

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