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

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Question 126441: Please help me!
How do i figure out x and y for these equations? x and y have to be the same for both equations.
3x-y=-9
4x+y=-5
Thank You
Click here to see answer by madhan_math(34)

Question 126455: x-2y=4 x+2y=12 graph
Click here to see answer by JessicaGill(40)

Question 126461:
graph the line that passes through (5,4), parallel to the graph of 4.4x+6.5y=5
Click here to see answer by checkley71(8403)

Question 126534: I am asked to solve and plot the x and y intercept. 2y=9
I know this how to solve for y
2y diveded by 2= nine divided by 2
2y/2=9/2
Will give me a solution of y= nine divided by 2
Solution for Y=9/2
I would plott Y on the graph as (0,9/2)
I dont underderstand how do I solve for x when there is no x given in 2y=9?
Click here to see answer by josmiceli(19441)

Question 126567: Find the slope and the y intercept of the line with the given equation.
y=4x-2
I have tried using the textbook but I just really don't understand how to solve the problem.
Click here to see answer by marcsam823(57)

Question 126613: y=4 find the slope and the y=intercept of each line.. can you so me how this is done. thanks
Click here to see answer by checkley71(8403)

Question 126614: How do I determine the points of a line?

Click here to see answer by stanbon(75887)

Question 126614: How do I determine the points of a line?

Click here to see answer by solver91311(24713)

Question 126664: I have a 2 questions, they are comfusing me, Laura and Brent paddled a canoe 6 miles upstream in four hours. The return trip took 3 hours. Find the rate at which Laura and Brent paddled the canoe in still water......that is one, and the other is, The sum of the digits of a 2-digit # is 11. If the digits are reversed, the new number is 45 more than the original numer. Find the number
Click here to see answer by solver91311(24713)

Question 126703: a molecule of propane has 26 atoms. if there are 6 fewer hygrogen atoms than 3 times the number of carbon atoms, how many atoms does it contain
Click here to see answer by MathLover1(20849)

Question 126752: Thanks in advance for helping me! I truley don`t understand. Please help me to find the answer!
Here is the question:
You can draw 1 segment to connect 2 points and 3 distinct segments to connect 3 named points. How many segments can you draw to connect five points if no three of the points lie on the same line?
Please help me Thank you sooooooo much! K.
Click here to see answer by solver91311(24713)

Question 126880: 4X-(6X+1)<=8X + 2(X+3)
Click here to see answer by jim_thompson5910(35256)

Question 126878: 2/3(p+3)> 5/6(p-4)
Click here to see answer by edjones(8007)

Question 126918: i have to find the slope and y-intercept of the line represented by the following equations. I could probably figure it out if I understood the overall formula but i am at a lost. The eqautions is as follows
y=-4x-3
Click here to see answer by checkley71(8403)

Question 126916: I have to find the slope and y-intercept of the line represented by the following eqautions. I am at a total lost. The eqaution is as follows
y=4x-3
Click here to see answer by checkley71(8403)

Question 126926: Find the slope and y-intercept of the line represented by the eqaution
x=2
Click here to see answer by Fombitz(32388)

Question 126934: How do I determine if the following pair of lines ar parallel, perpendicular or neither. How do I solve the eqaution
Line 1 with equation x+2y=6
line 2 with eqaution x+3y=9

Click here to see answer by checkley71(8403)

Question 126862: x-3=y
Click here to see answer by checkley71(8403)

Question 126977: what is the value expression of 4x-2y when x=-1 and y=5? can u show the work or the steps on how to find the answer?
Click here to see answer by solver91311(24713)

Question 126976:
c/2-d/5=-4 and c-d/5=-8 solve by substitution method
Click here to see answer by josmiceli(19441)

Question 126976:
c/2-d/5=-4 and c-d/5=-8 solve by substitution method
Click here to see answer by checkley71(8403)

Question 126983: write this in function form: 3x+4y=0
Click here to see answer by MathLover1(20849)

Question 126983: write this in function form: 3x+4y=0
Click here to see answer by edjones(8007)

Question 126982: how do you graph: 3x+2y=-2
Click here to see answer by MathLover1(20849)

Question 126795: 20) John owns a hotdog stand. He has found that his profit is represented by the equation
P(x) = -x2 + 66x + 82, with P being profits and x the number of hotdogs sold. How many
hotdogs must he sell to earn the most profit?
Click here to see answer by ankor@dixie-net.com(22740)

Question 126879: 4X-(6X+1)<=8X + 2(X+3)
Click here to see answer by MathLover1(20849)

Question 127005: what is the definition of linear?
Click here to see answer by solver91311(24713)

Question 127008: Draw the line that has the given slope and passes through the given point.
slope= -2/7; (-4,5)
Click here to see answer by jim_thompson5910(35256)

Question 127056: The formula for Converting Fahrenheit temperature to Celsius is C=5/9(F - 32)
If the Celsius temperature on a certain Winter Day Minneapolis is neverless than -25 degrees how would you describe the corresponding Fahrenheit temperatures? (please help in detailed steps thank you :) )
Click here to see answer by stanbon(75887)

Question 127067: I really need help I have no idea where to start on this problem. Please help
5x+6y=18 solve for y
I can not thank you enough for your your assistance.
JC
Click here to see answer by edjones(8007)

Question 127107: I have no example of such question and I am stuck on this one. I do know how to change to slope intercept form. This is the question: Given the equation x+ky=3, find k so that its graph has the same slope as the graph of 2x+y=5
Click here to see answer by solver91311(24713)

Question 127207:
how do I find the slope of y + 4 = 9
Click here to see answer by checkley71(8403)

Question 127205: how do I find the slope of y + 4 = 9
Click here to see answer by checkley71(8403)

Question 127205: how do I find the slope of y + 4 = 9
Click here to see answer by dreamer(2)

Question 127210: find the slope of y = -3x
Click here to see answer by Earlsdon(6294)

Question 127211: This problem is not from a book. It is a an activity made by my instructor. Here is the problem:
You are considering going to spring semester at CGCC. You know that you will have to pay $65 per credit hour. You are on a limited budget, so you need to calculate the total cost based on the number of credit hours.
1. What are the input and output variables?

2. Write in words a rule that describes how to calculate the total tuition bill

Click here to see answer by stanbon(75887)

Question 127216: Find an equation in the form y = mx + b
through (5, -1); slope = 2/3
Click here to see answer by stanbon(75887)

Question 127209: find the slope of y = -3x
Click here to see answer by stanbon(75887)

Question 127228: This is from a worksheet from the instructor: Write the following rule as a formula using function notation: Tuition cost in dollars is sixty-five times the number of credit hours.

Click here to see answer by stanbon(75887)

Question 127302: Please help me solve this equation.
Change the equation,x-y=4 to the form y=mx+b.
Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 127303: What is the solution to the sysytem of equations y=2x and y=-x+3?
Thank You for your time!!
Click here to see answer by jim_thompson5910(35256)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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