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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 484331: i am doing equations and inequalities so i thought you could help the problem is y=-2x and the formula is y=mx+b. please and thank you!
Click here to see answer by richard1234(5390)

Question 484889: Hello, I have a question on finding the slope of a line that is perpendicular to the line y=4/9x-12
Thank you so much for the help.
-Kaitlin
Click here to see answer by nerdybill(6963)

Question 484900: Solve this linear equation. Do not give decimal answers. Leave answers as simplified factions:
x+5=1/3(6x-5)
Thank You for your help.

Click here to see answer by jim_thompson5910(28598)

Question 484928: What is the slope of the line y= -2x+5? I am not certain if what I graphed is right? please help.
Find the value of x at which the two lines y= 2x+1 and y+ -1/4x+3 intersect. I am confused. Thank you.
Click here to see answer by jim_thompson5910(28598)

Question 484863: 4(w+5)-7(w-9)=9(w-4)+12
Click here to see answer by jainpreeja(10)

Question 484950: (6x+7)/(4x-1)=(3x+8)/(2x-4)
Click here to see answer by MathLover1(6638)

Question 484978: 15. How many solutions does the following system of equations have? explain why
6x - 3y = 6
2x - y = 2
a)zero
b)one
c))two
d)an infinite number

Click here to see answer by Tatiana_Stebko(1326)

Question 484977: 11. Solve the following word problem (Hint: setup and solve a system of equations):
One number plus twice another number gives a sum of 42. The difference of these same two numbers equals –3.
Find the two numbers
a)The numbers are 12 and 15.
b)The numbers are 11 and 14.
c)The numbers are 13 and 16.
d)This problem has no solution.

Click here to see answer by stanbon(57395)

Question 484975: complete the ordered pair so that it is a solution to the linear equation (0,?)
y = 3x + 8
Click here to see answer by Tatiana_Stebko(1326)

Question 485034: i dont know how to solve linear equation problems!!! please help. i just started highschool and i am in accelerated geometry. i forgot everything!
Click here to see answer by rfer(12670)

Question 485015: How do I find the slope of y= -2x +5. How do I find the value of x at which the 2 lines y=2x+1 and y= -1/4x + 3 intersect. I am completely confused, please if someone can show me step by step to get a solution to both of these. Thank you.
Click here to see answer by rfer(12670)

Question 485084: What is an example of a nonlinear function?
Click here to see answer by rfer(12670)

Question 485199: is this ordered pair a solution of the given linear equation (-2, 4/3)
-3y+4x=-12
Click here to see answer by mananth(12270)

Question 485208: if the line passes through points (0,5) and (-2,9), the equation for the line is?
Click here to see answer by rfer(12670)

Question 485216: how do i graph the lineaur equation like this?
what are the steps?
x+y<10
x-y<-5
and how do i graph any lineaur equation?

Click here to see answer by mananth(12270)

Question 485325: Find the slope and the y-intercept of the equation.
2x+y=9
Click here to see answer by Tatiana_Stebko(1326)

Question 485308: given the linear equation y=3/7x-1, find the y coordinates of the points (-7),(0), (7) plot those points and graph the linear ewuation.
Click here to see answer by mananth(12270)

Question 485429: y=-2x+6

Click here to see answer by jorel1380(2518)

Question 485411: Solve linear equation:
-1/2x+5(x-3)+x-1
( KEY : -1/2 is a fraction)
Click here to see answer by Alan3354(30993)

Question 485504: Find the slope, if possible of the line passing through each pair of points
(3/2,4) and (-2,0)
I am stumped... I know: m= 0-4/-2-3/2 where I get stumped is do I have to flip the bottom since it is a negative??? Please help!!

Click here to see answer by Alan3354(30993)

Question 485419: I have 3 questions that needs to be answered using a graph, but I am unable to copy and paste alone with the questions. I will explain the graph. Here are the instructions and questions:
The following graph shows data regarding the population of Rochester, New York. Original projections predicted the same population in half the number of years.
Answer the following questions. Please show all of your work.
At what rate was the population changing?
At what rate did the projections predict the population would change?
What was the predicted population in 2003?
the graph shows the population started at 350,000; declined to 300,000 in 2 years. Then decline again to 250,000 in 4 years.
Thank you for your help.

Click here to see answer by Theo(3464)

Question 485541: Find the slope
(-1/3,-2) and (1,-4)
I have so far m= -4-(-2)/1-(-1/3)
When I work it out I come out with m=-2/3 but the answer should actually be m=-3/2.. Can you show me how to get to that answer... I can not figure it out... Thanks
Click here to see answer by Alan3354(30993)

Question 485683: I need help with how to find missing coordinates!
Find the value of k
(-3,2k)(k,6) m=4
Click here to see answer by solver91311(16897)

Question 485683: I need help with how to find missing coordinates!
Find the value of k
(-3,2k)(k,6) m=4
Click here to see answer by Theo(3464)

Question 485760: Given the linear equation y=-7/8x+2, find the y-coordinates of the points (-8,), (0,), and (8,). Please show all of your work
Click here to see answer by mananth(12270)

Question 485779: Find the x and y intercepts and graph the equation plotting the intercepts. Please show all of your work. -3x-7y=21
Click here to see answer by mananth(12270)

Question 485781: Write the slope-intercept equation for the line that passes through (-3,-15) and is perpendicular to -6x+8y=3
Click here to see answer by mananth(12270)

Question 485780: Given the linear equation y=-7/8x+2, find the y-coordinates of the points (-8,), (0,), and (8,). Please show all of your work
Click here to see answer by mananth(12270)

Question 485805: Please help... GRE cramming and struggling.
7x+3y=12
3x+7y=6
x-y=?
Have tried several methods, keep getting crazy fractions.
Thanks so much.
E
Click here to see answer by mananth(12270)

Question 485751: write an equation and draw a graph for the line with slope 3/2 that pass through point (-2,0)
Click here to see answer by rfer(12670)

Question 485820: why should you clear fractions when solving linear equations?
Click here to see answer by Edwin McCravy(8912)

Question 485822: why should you clear decimals when solving linear equations?
Click here to see answer by Edwin McCravy(8912)

Question 485862: find the value of x. 6x-3(6-5x)+3x=10-4(2-x) ?
Click here to see answer by jim_thompson5910(28598)

Question 485145: Find the slope m of the line that passes through the points (–3, 1) and (5, 6).
Click here to see answer by stfuenaira(10)

Question 485954: what is the equation of the line? (-8,-8) and (3,3)
Click here to see answer by mananth(12270)

Question 485955: what is the equation of the line is slope-intercept form is y=___. (-1,-3) and (-8,-9)
Click here to see answer by mananth(12270)

Question 485956: what is the equation of the line (1/6,1/3) and (5/6,1)?
Click here to see answer by mervh1967(6)

Question 486001: let (x1, y1)=(-6,-3) and (x2,y2)=(-4,5). Find y2-y1/x2-x1 and y1-y2/x1-x2 are the results the same?
Click here to see answer by solver91311(16897)

Question 146383: Would someone please show me the steps to solve this linear equation please?
-3(-x+4) = 3x - 12
Thank you so much!!

Click here to see answer by Lrahirwar(2)

Question 486047: find the equation of the line having the given slope, and containing the given point.
m=9 (6,7)
the equation of the line is y=?
Click here to see answer by solver91311(16897)

Question 486194: find the solution to each system by the substitution method
2x-5y=-1
x-3y=-3
next problem
10x+3y=8
2x+y=2
email to send the answers cgividen0817@yahoo.com Thank you
Click here to see answer by mananth(12270)

Question 486233: (x+7)(x-1)=(x+1)^2
i got to this step: X^2-x+7x-(x+1)^2+7=0
I do not uderstand what to do after the exponent is confusing me and i will really apreciate your help/advice thank you in adcanced.
Click here to see answer by mananth(12270)

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