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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 607672: what are some similarities between rational, linear, and log equations?
Click here to see answer by jim_thompson5910(35256)

Question 607704: How do I solve 5x-y=9 ?
Click here to see answer by jim_thompson5910(35256)

Question 607820: what is the linear equation of coordinates (1,44000) (2,46000)
Click here to see answer by jim_thompson5910(35256)

Question 607903: Solve: x1/2 + 2x1/4 - 3 = 0.
Click here to see answer by lynnlo(4176)

Question 608025: Solve the system of linear equations below.

6x + 3y = 33
4x + y = 15
A. x = 2, y = 7
B. x = -13, y = 7
C. x = - 2/3 , y = 12 2/3
D. x = 5, y = 1
Click here to see answer by ewatrrr(24785)

Question 607897: six times the sum of the digits of a two digit number is one less than the number and eight more than the number obtained by reversing the digits of the two digit number. what is the product of the digits?
Click here to see answer by ankor@dixie-net.com(22740)

Question 608232: How do you label the axes on a coordinate plane?
Click here to see answer by Alan3354(69443)

Question 608341: Can you please teach me how to find slopes of lines if I'm only given the x or y? For example, finding the slope when y=7
Click here to see answer by Alan3354(69443)

Question 608341: Can you please teach me how to find slopes of lines if I'm only given the x or y? For example, finding the slope when y=7
Click here to see answer by solver91311(24713)

Question 608374: Is y=0.1x + 9 linear or nonlinear ?
Click here to see answer by solver91311(24713)

Question 608375: A hippopotamus weighed 700 lb at the age of 1 and 1,900 lb at the of 3, and 2,500 at the age of 4 what is the equation for the trend line ?
Click here to see answer by solver91311(24713)

Question 608441: Line one x+2y=2
Line two x-y=2
how to solve?
Click here to see answer by solver91311(24713)

Question 608482: four years ago, a man's age was three years more than thrice his son's age. fifteen years hence, his age will be five years less than twice his son's age . find the man's present age.
Click here to see answer by stanbon(75887)

Question 608408: Given A(-4,0) and B(4,0), in each case find the equation of the set of points P such that the slope of AP is twice the slope of BP. Also, the consecutive question asks the exact same thing, but the slope of AP must be one more than the slope of BP. So far, I've came up with y=2mx+b, and y=mx+(b-1), but I'm stumped after that. I've already asked a couple of questions, but I really appreciate all the help I can get, because my teacher is assigning an extremely difficult final review with questions like, solve for y: (log(3)x)*(log(x)2x)*(log(2x)y)=log(x)x^2, which took me FOREVER to solve after I figured out how to use the change of base formula...
Click here to see answer by scott8148(6628)

Question 608511: what is the equation of a line that is perpendicular to the line y=-2/5x-5 and passes through the point 6,1
Click here to see answer by ewatrrr(24785)

Question 608557: What does the number in front of the X do to the graph? Example : -2(x-5)^3 +3
Click here to see answer by stanbon(75887)

Question 608560: I am tutoring my granddaughter and I am stuck. We have our known x and y numbers and need to write the formula to express them.
For the following sets of points, what is the equation: X=0, Y=5...X=1, Y=2...X=2, Y=-1...x=2, y=-1, and x=3, Y=4. I can see that x is increasing by 1 and y is decreasing by 3, but for the live of me I can't figure out how to write the formula.
For the following sets of points, what is the equation: x=-2, y=1 ... x=0, y=0,... x=2, y=-1, ,and x=4, y=-2. x is increasing by 2, y is decreasing by 1.
Thanks
Candy
candace_rolsky@wowway.com
Click here to see answer by ewatrrr(24785)

Question 608235: How to label the axes on a coordinate plane?
Click here to see answer by richard1234(7193)

Question 608735: how can you tell if a point is a solution to an inequality.?
Click here to see answer by scott8148(6628)

Question 608872: A (5,2) is in the standard (x,y) coordinate place. what must be the coordinates of the point of B so that the line x=4 is the perpendicular bisector is AB? and why?
Click here to see answer by solver91311(24713)

Question 608950: Convert the linear velocity (25 km/hr) of a car going around a round-about to angular velocity in rad/s. Assume the radius of the circle the car is travelling is 10 m.
I think I have this correct however could someone check it for me please.
km/h to m/s = 25*1000/3600=6.94m/s
w=v/r = m/s/radius = 6.94m/s/10m = 0.694rad/s
Click here to see answer by lwsshak3(11628)

Question 608965: how do i find the equation of a perpendicular line when given the distance from the origin and the angle between the perpendicular and the positive side of the x axis
Click here to see answer by Alan3354(69443)

Question 609056: solve each system by elimination
4x-10y=6
8x-20y=24
Click here to see answer by ewatrrr(24785)

Question 609055: sketch the graph of
x-intercept= 5, y intercept =-2
Click here to see answer by flame8855(424)

Question 609147: What is the square root of 4?
Click here to see answer by flame8855(424)

Question 609130: Write each function in vertex form then find each of the following to two decimal places. A) Intercepts, B) Vertex, C) Maximum or Minimum, D) Range
g(x) = 0.25x^2 - 1.5x-7
Click here to see answer by ewatrrr(24785)

Question 609187: write the equation of a line that passes through the point (-1, 4) and is perpendicular to the line 2x-6y=12
Click here to see answer by ewatrrr(24785)

Question 609453: What is the slope of the line represented by the equation -2y = x - 1?
Click here to see answer by flame8855(424)

Question 609468: Find the following product: -9x^5y(-5x^4y^6)
Please help! I sure could use it on this problem.
Click here to see answer by lynnlo(4176)

Question 609462: give a real world example of a graph with no y or x intercept?
Click here to see answer by flame8855(424)

Question 609549: Hello. My assignment is to come up with four essential vitamins/minerals and their recommended daily values. Also, four foods that contain each of those vitamins/minerals. Then I have to construct a linear system of equations that determines how much of each item a person would need to consume to achieve the recommended daily value of each nutrient.
For the minerals, I have: Magnesium- 400mg, Potassium-3500mg, Sodium-2400mg, and Zinc-15mg
The foods that I have chosen and calculated are:
1.)4 oz.Chicken: calcium-17.01mg, iron-1.18mg, magnesium-32.89mg, sodium-83.91mg,potassium-290.30mg, & zinc-1.13mg)
2.) 4oz Salmon: calcium-7.94mg, iron-.62mg, mag-35.15mg,sodium-74.84mg, potassium-425.24mg, zinc-.58mg
3.)Whole wheat: calcium-18.20mg, iron-1.75mg, mag-58.24mg,sodium-9.10mg, potassium-123.76mg, zinc-1.04mg
4.)1 cup 2% Milk: calcium-292.80mg, iron-.05mg, mag-26.84mg,sodium-114.68mg, potassium-341.60mg, zinc-1.17mg
Honestly, I have no idea how to begin to create a linear equation for all of these. Hopefully someone can simplify the process for me, or give me an example of a linear equation that I can use to create one for each food
Click here to see answer by solver91311(24713)

Question 609587: ive been needing help in pre al. my grade has gone down to a low C-. I NEED HELP PLEASE!!!
Click here to see answer by Alan3354(69443)

Question 609567: write an equation of the line containing the given point
and parallel to the given line. Express your answer in the
form y= mx + b.
(2,9); x + 9y = 2
Click here to see answer by solver91311(24713)

Question 609568: write an equation of the line containing the given point
and parallel to the given line. Express your answer in the
form y= mx + b.
(-2,3); 7x= 4y+5
Click here to see answer by solver91311(24713)

Question 609569: write an equation of the line containing the given point
and parallel to the given line. Express your answer in the
form y= mx + b.
The equation of the line is y=
(-2,3); 7x= 4y+5
Click here to see answer by solver91311(24713)

Question 609571: write an equation of the line containing the given point
and parallel to the given line. Express your answer in the
form y= mx + b.
(2,7) 5x + y=3
The equation of the line is y=
Click here to see answer by solver91311(24713)

Question 609578: what is the slope of the line that contains the points (-23, -16) and (13,-16)
Click here to see answer by Alan3354(69443)

Question 609978: write an equation of the line containing the given points and perpendicular to the given line (6,-7) 3x+4y=5
Click here to see answer by scott8148(6628)

Question 610106: 5x-1>29 wat is x

Click here to see answer by flame8855(424)

Question 610186: Write the slope-intercept equation for the line that passes through (2, -7) and (4, -13)
Click here to see answer by flame8855(424)

Question 610324: find the slope (-3,4)and (8, -4)
Click here to see answer by jim_thompson5910(35256)

Question 610432: 5x-3=15x-83

Click here to see answer by richwmiller(17219)

Question 610531: The slope whose equation is 3x-4y=7
Click here to see answer by nerdybill(7384)

Question 610533: I have not the slightest clue as to what this math problem's name is, so that's why I just put it under Linear Equations, Graphs, and Slope.
If g(x)= x^2-6x+3 Find g(-2)
________
x+4
Click here to see answer by stanbon(75887)

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