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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 53727: hi i need help with 1. finding the slope for -1/2x-y=3/4
2. How do you graph y>|x+2|-3
Click here to see answer by funmath(2933)

Question 53639: 3x-2y>0
if x =0 then y=-0/3, if y=0 then x=-0/2
is this possible
Click here to see answer by stanbon(75887)

Question 53659: find the slope of the following:
The line determinded by the equation.
4y=6x+12
Click here to see answer by stanbon(75887)

Question 53751: (-4,0) slope 5/2
y-0= 5/2(x--4)
y-0 = 5/2x-15
+0 +0
y= 5/2- -10
Is this how to solve this problem... If not could you please show me how and what exactly I did wrong..
Click here to see answer by stanbon(75887)

Question 53744: Help. I need to answer if this equation is linear and if so I need to write it in standard form.
5y + 4x + 3= 10
Thanks.
Brenna
Click here to see answer by stanbon(75887)

Question 53797: 3 (k - 4) = -36
If I understand the rule right I am suppose to
3k + 12 = -36
3k = 15 = -36/15
k = -2.4
but this is the wrong answer can you tell me what to do
Click here to see answer by stanbon(75887)

Question 53795: Could you please help me find the soultion to this question.
slope: -2;y-intercept (0,4)
Click here to see answer by stanbon(75887)

Question 53795: Could you please help me find the soultion to this question.
slope: -2;y-intercept (0,4)
Click here to see answer by funmath(2933)

Question 53823: Hello and thanks so much for your time.
Find the slope of any line perpendicular to the line through points (0, 5) and (-3, -4).
McGraw Hill 6th edition, 7.2, Problem # 16. Thanks!!
Click here to see answer by stanbon(75887)

Question 53825: Hello and thanks so much for your time.

Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible. A note by this problem says to rewrite it in standard form.
(0,5),m= 3/5
McGraw Hill 6th edition, 7.3, Problem #6. Thanks!!
Click here to see answer by stanbon(75887)

Question 53818: Write the equation of the line with given slope and y intercept. Then graph each line using the slope and y intercept. McGraw Hill 6th edition. 7.1 problem #22. Thanks so very much for your help!!

Slope: 2/3; y-intercept: (0,-2)

Click here to see answer by checkley71(8403)

Question 53843: 65m+230=70m+900
Click here to see answer by checkley71(8403)

Question 53740: how do you write an equation of
slope=3 thru(1,5) in standard form

Click here to see answer by Nate(3500)

Question 53876: what is the slope of the line that bisects the 90 degrees angle betweeb the +x and +y axes? between the -x and +y axes?
Click here to see answer by stanbon(75887)

Question 53817: Write the equation of the line with given slope and y intercept. Then graph each line using the slope and y intercept. McGraw Hill 6th edition. 7.1 problem # 18. Thanks so very much for your help!!

Slope: 5;y-intercept: (0,-2)

Click here to see answer by checkley71(8403)

Question 53839: Graph the linear system and estimate the solution. Then check
the solution algebraically.
20. 2x + y = 13
5x - 2y = 1
Click here to see answer by rchill(405)

Question 53912: Please show me a graph of x + y < 5. Thank you
Click here to see answer by funmath(2933)

Question 53911: show me a graph of x - y < 5
Click here to see answer by funmath(2933)

Question 53903: how do i find the altitude for this problem?,
a jetliner covered a horizontal distance of 5 mi. while following a flight path with slope 0.25.how much altitude did it gain?
Click here to see answer by funmath(2933)

Question 53944: Can someone help me solve this problem?
I need to solve and graph the solution set of the following inequalities:
7(x-3) > 5x - 14
<__________________>
Thanks,
Lyn
Click here to see answer by Edwin McCravy(20055)

Question 53943: Can someone help me solve this problem?
I need to solve and graph the solution set of the following inequalities:

3x > 3x - 4
__ (the line is under the > )
<_____________>
Thanks, Lyn
Click here to see answer by stanbon(75887)

Question 53942: Can someone help me on this problem?
I need to graph the solution set of the following inequalities:
x > 4
<______________>
Thanks,
Lyn
Click here to see answer by stanbon(75887)

Question 53937: How would I graph y=-x+1
Click here to see answer by funmath(2933)

Question 53993: I've been trying to figure out how to do this problem but I can't seem to get it right. The problem is...
Solve the system using any algebraic method

I tried the problem a couple of times but I still couldn't get the answer right.
This is what I tried:

and that cancelled out the y value and left me with 4x+4z=8. Then I combined

that cancelled out the y value again and left 7x+7z=14 and from there I got stuck.
Click here to see answer by stanbon(75887)

Question 53660: find the slope of the line that passes throught the ordered pairs:
(a,b); (b,a)
(a,b); (-b,-a)
simplifiy and express your answer as a real number.
Click here to see answer by wgomero(28)

Question 53965: Write the equation of the line passing through each of the pairs of points. Write your result in slope-intercept form, where ever possible.
(2,-3) and (2,4)
Mcgraw Hill 6th edition, chapter 7.3, problem #24. Thanks so much for your help!!!
Click here to see answer by rchill(405)

Question 53816: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. McGraw Hill 6th edition. 7.1 problem # 16. Thanks so very much for your help!!
Slope: -2;y-intercept: (0,4)

Click here to see answer by rchill(405)

Question 53969: Write the equation of the line L satisfying the given geometric conditions.
L has y intercept (0,2) and is perpendicular to the line with equation 2x-3y=6

McGraw Hill 6th edition. CH. 7.3 Problem # 40
Thank you so very much for your time!!!!!

Click here to see answer by rchill(405)

Question 53968: Write the equation of the line L satisfying the given geometric conditions.
L has y intercept (0,-3) and is parallel to the line with equation y= 2/3x + 1.

McGraw Hill 6th edition. CH. 7.3 Problem # 36
Thank you so very much for your time!!!!!

Click here to see answer by rchill(405)

Question 53962: Write the equation of the line passing through each of the pairs of points. Write your result in slope-intercept form, whereever possible.
(-1,3) and (4,-2)
Mcgraw Hill 6th edition, chapter 7.3, problem 3 20. Thanks so much for your help!!!
Click here to see answer by rchill(405)

Question 54021: is this a linear equation y^2=4x+9? what is the slope and y intercept?
Click here to see answer by Nate(3500)

Question 54026: 2y=4-x is this a linear? what is the slope and y-intercept?

Click here to see answer by Nate(3500)

Question 54036: I need to graph the solution set of the following inequalities:
x > 4
< _____________>
If I designate some point as "4", then put an open circle around that point. Then I drawn an arrown to the right along the line to the point at the right. Is that all I do? My question also is do I or not draw a line to the left with an arrow or just leave that out?
I am kind of lost on this.
Can you help me?
Thanks, Lisa
Click here to see answer by stanbon(75887)

Question 54061: (-2,1),1
Click here to see answer by funmath(2933)

Question 54074: This is a word problem for inverse variations.
The cost per person to rent a mountain cabin is inversely proportional to the number of people who share the rent. If the cost is $36 per person when 5 people share, what is the cost per person when 8 people share?
using the formula y=k/x
Click here to see answer by stanbon(75887)

Question 54090: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Slope: -3/4;y-intercept;(0,8).
McGraw Hill 6th edition. Chapter 7.1 Problem # 20.
Thanks for you time!!!
Click here to see answer by funmath(2933)

Question 53457: i can not figure this out i do not knwo wha ta test point is
graph th einequality using the test point method
4x+3y greater than 24
Click here to see answer by stanbon(75887)

Question 54111: How do I graph -2x + 5y =10?
Click here to see answer by funmath(2933)

Question 54114: use the slope-intercept method to find the equation of the line through the points (-2,3) and (4,7)
Click here to see answer by funmath(2933)

Question 54114: use the slope-intercept method to find the equation of the line through the points (-2,3) and (4,7)
Click here to see answer by checkley71(8403)

Question 54025: In the following problem, (a) choose two variables to represent the numbers asked for, (b) write an open sentence relating the variables, and (c) solve the open sentence and give the answer to the problem. (Include solutions in which one of the variables is zero.)
Luis has 95 cents in dimes and quarters. Find all possibilities for the number of each type of coin he could have.
Click here to see answer by venugopalramana(3286)

Question 53505: 2x-6, if x<2
Click here to see answer by AnlytcPhil(1806)

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