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

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Question 459139: what's the slope of a line passing through the points (2,4) and (-1,-2)
Click here to see answer by math-vortex(648)

Question 459086: (-5,1) slope= -4/5

Click here to see answer by rwm(914)

Question 459154: What is the slope of line A?
3x-7y=-3
Click here to see answer by algebrahouse.com(1659)

Question 458948: what is the slope of a line passing through the points (11,-2) and the origin
Click here to see answer by richard1234(7193)

Question 459369: Determine if (1/2, -4) is a solution to 4x-3y=10
Click here to see answer by sudhanshu_kmr(1152)

Question 459421: translate to an equation
p $5 bags of popcorn and s $4 sodas total $60
Click here to see answer by edjones(8007)

Question 459441: Please help me solve this equation : what is the distance between (-2,5) , (3,1) ?
Click here to see answer by rfer(16322)

Question 459455: Y=6x+9 what is the x and y intercepts?
Click here to see answer by rfer(16322)

Question 459478: Melinda and JP are selling lemonade at a stand in her front yard. The linear expression below models her total profit in dollars after h hours.
2
-(6h-5)+4h
3
How much does her profit increase each hour? Explain in words and worked out expressions.
Also,
Evaluate the expression for h = 0. wHAT DOES THIS VALUE MEAN IN THE CONTEXT OF THE PROBLEM?

Click here to see answer by solver91311(24713)

Question 459496: 1.determine the slope of a line through points (4,-8) and (3,-6)
2.Find an equation in slope-intercept form for the line that passes through (-3,1) and (-2,-3)
3.The function fx=25x+400 represents Jason's total savings after x weeks. How much has saved after 8 weeks?
4. What is the slope of a line that is perpendicular to the graph of: y=-1/2x+4?
Click here to see answer by richwmiller(17219)

Question 459558: Write the equation of a line that passes through the points (3,8) and (9,0). Show Work.
Click here to see answer by solver91311(24713)

Question 459543: give the equation of the line perpindicular to 6x-3y=12 and whose y-int is -4

Click here to see answer by mananth(16946)

Question 459669: how do I find the x and y intercept in: y=-8x
thanks
Paola
Click here to see answer by solver91311(24713)

Question 459669: how do I find the x and y intercept in: y=-8x
thanks
Paola
Click here to see answer by stanbon(75887)

Question 459730: x + y = -5
graph equation and identify y-intercept
Click here to see answer by MathLover1(20849)

Question 459741: Find the point of intersection on a pair of straight lines.
Y=3x-15
Y=-2x+10
thanks
Paola
Click here to see answer by Alan3354(69443)

Question 459741: Find the point of intersection on a pair of straight lines.
Y=3x-15
Y=-2x+10
thanks
Paola
Click here to see answer by amoresroy(361)

Question 459763: In a right triangle, one of the acute angles is twice as large as the other acute angle. Find the meeasure of the two acute angles.
Click here to see answer by math-vortex(648)

Question 459781: One angle in a triangle is half the largest angle but three times the smallest. Find all three angles.
Using the guess and check method, I found that the angles would be 108-18-54, however I don't know how to set that up using algebra.
Thanks for your time!
Click here to see answer by stanbon(75887)

Question 459784: Tyler parents pay him $0.50 to do laundry and $1.25 to mow the lawn. In one month, he does the laundry 6 more times than he mows the lawn. If his parents pay him $13.50 that month, how many times did he mow the lawn?
Using guess and check, I got 6 times mowing the lawn for $7.5 and 12 times doing the laundry for $6.00.
How would I set this up without using guess and check?
Click here to see answer by richwmiller(17219)

Question 459794: Write the slope-intercept equation for the line that passes through (-9,9) and is perpendicular to -9x-2y=10. Please show the steps
Click here to see answer by nerdybill(7384)

Question 459473: Find three consecutive odd integers whose sum is 111. Are there three consecutive odd integers whose sum is 1111? Explain
Click here to see answer by richard1234(7193)

Question 459956: Please help, how do I find the perimeter of a rectangle that is 90 cm if the width is 5 less than 1/2 of the length which is 31 and the width is 14.
Thanks
Click here to see answer by rfer(16322)

Question 459961: Write a point-slope equation for the line with the given slope that contains the given point m= -3: (-2, -5). please show work.

Click here to see answer by rfer(16322)

Question 459925: 1.Write an inequality to describe a number less than or equal to -2
2.Write an inequality to describe the graph -1,2
3.Write an inequality to describe the graph +4

Click here to see answer by rfer(16322)

Question 459974: given the linear equation y = -7/4 x-1, find the y-coordinates of the points (-4, ), (0 ), and (4, ) please show all of your work. plot these points and graph the linear equation.
Click here to see answer by richwmiller(17219)

Question 459980: find the slope and y-intercept of the line in the given equation
y = -2/7 x -3
Click here to see answer by rfer(16322)

Question 459977: write the slope-intercept for the line with slope -1/4 and y-intercept (0, -2) and graph the line. please show all work.
Click here to see answer by rfer(16322)

Question 459978: find the x and y intercepts and graph the equation plotting the intercepts. please show all of your work. 5x -7y = -35
Click here to see answer by rfer(16322)

Question 459964: Write an equation of the line containing the specified point and perpendicular to the indicated line. (4, −2), x = 1

Click here to see answer by richwmiller(17219)

Question 459991: If I made 122,000 dollars this year and that was a 7% increase from last year, what was I paid last year?
122,000 * 0.07 = 8540
122,000-8540 = 113,460
113,460 * 0.07 = 7942.2
113,460 + 7942.2 does not equal 7% increase
How do I find the 7% increase?

Click here to see answer by scott8148(6628)

Question 459998: Find the slope of the line. I am given a graph with the coordinates being (-5,3)(5,2) I tried the equation y2 - y1 divided by x2-x1 but it was a fraction -1/10.
Click here to see answer by scott8148(6628)

Question 459993: Determine whether the lines are parallel. y = (1/3)x - 2 and y = (-1/3)x + 1.. please show work

Click here to see answer by richard1234(7193)

Question 460008: write the slope-intercept equation for the line that passes through (14, -2) and is perpendicular to 7x - 10y = 18 please show all of your work
Click here to see answer by oberobic(2304)

Question 459987: write the slope-intercept equation for the line that passes through (2, -7) and (4, -13) please show all work
Click here to see answer by jim_thompson5910(35256)

Question 460022: graph x+3y=0
Click here to see answer by oberobic(2304)

Question 459876: I am having problems with understanding how to solve equations that involve LCD. Such as 10/4y+6/2=2y-2. I don't understand the whole concept so if you could maybe tell me how I would go about solving that problem and explain each step so I know how to do it in future equations I would appreciate it. Thank you
Click here to see answer by ankor@dixie-net.com(22740)

Question 460048: write the slope intercept equation for the line that passes through (-7, 5) and has slope -1/7 please show work
Click here to see answer by MathLover1(20849)

Question 460130: Find the equation of the line containing the point and perpendicular to the given line. (0,�7); 4x + 3 = y please show work
Click here to see answer by richard1234(7193)

Question 460129: Find the value of r so that the line through (5,r)and (2,-3)has a slope of 4/3 I know I did some thing wrong I just don't know what please help me out thanks This is what I did
m = y2-y1 / x2-x1 slope Formula
4/3 = -3-r /2-5 Let (5,r)= (x1,y1) and (2,-3)= x2,y2)
4/3 = -3-r / 3 Subtact
4(-3-r) = 3(3) Find the cross products
10+4r = 9 Simplify
35r = 39 Add 30 to each side and simplify
11.6 = 13 Divide each side by 3 and simplify
So the line goes threw

Click here to see answer by Alan3354(69443)

Question 460132: Find the equation of the line containing the point and perpendicular to the given line. (0,�7); 4x + 3 = y please show work.
Click here to see answer by Alan3354(69443)

Question 460156: find the slope,if it exists of the line y=13.8x
Click here to see answer by stanbon(75887)

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