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

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Question 799583: solving for "y"
x+2y=6
x-3y=12
2x-5y=0
2x-3y=-3
4x+y=3
3x-2y=-8

Click here to see answer by waynest(281) About Me 

Question 799628: which point is located on the x axis?
-1,-1
-4, 0
0, 5
3, 3

Click here to see answer by luke94(89) About Me 

Question 799415: Find the equation in the form of y=mx+b through (2,2), perpendicular to y=3x+4.
Click here to see answer by lwsshak3(11628) About Me 

Question 799681: what is the equation of the line passing through (3,-3) and x-intercept of 15/4?

Click here to see answer by josgarithmetic(39617) About Me 

Question 799721: I know this question has a a lot of sections but I have been working on this question for 2 weeks and I can't get it. Could you please show all workings on the parts you choose yo help.
A. Draw a graph of the line that passes through(0,3) and has a gradient of 1.
B.state the equations
C. Draw the line. Y=5-x on the same set of axes
D. State the co-ordinate a of point of intersection
E. Solve the equations simultaneously to confirm your answer to part d.
Please if someone could help, I would appreciate it very much
Thanks
Deanna

Click here to see answer by stanbon(75887) About Me 

Question 799141: find the slope intercept form of the equation of a line with the given slope that passes through the given point
slope: 6/7
through (-14,-12)

Click here to see answer by tommyt3rd(5050) About Me 

Question 799811: Find the value or r so the line that passes through the pair of points below has the given slope.
(-2 , 3), (r , 6), m = 3/7
r =

Click here to see answer by solver91311(24713) About Me 

Question 799839: 2* + *y=7
Click here to see answer by Alan3354(69443) About Me 

Question 799965: use the given conditions to write an equation for the line in point-slope form and slope intercept form passing through (5,-9) and perpendicular to the line whose equation is x+2y=5
Click here to see answer by stanbon(75887) About Me 

Question 799973: how do I solve this equation by graphing: 1/2x-2=0
Click here to see answer by jerryguo41(197) About Me 

Question 799967: use the given conditions to write an equation for the line in point slope form and slope intercept form
passing through (-1,3) and parallel to the line whose equation is 2x-3y=7

Click here to see answer by mananth(16946) About Me 

Question 800239: 2.Let f(x)= 4x^2-3x+1. compute and fully simplify f(x+h)-f(x)/h.

Click here to see answer by solver91311(24713) About Me 

Question 800306: Find the slope of a line passing through the points (11,-2) and the origin.
Click here to see answer by lwsshak3(11628) About Me 

Question 800317: at noon a plane left austin for lax, 2100 kms away at 500 km per hour. an hour later a jet left lax for austin at 700 kms per hour. at what time did they pass each other?
Click here to see answer by josmiceli(19441) About Me 

Question 800422: x-y-9=0

Click here to see answer by waynest(281) About Me 

Question 800450: Question 1) Find the equation of a line parallel to the line 2x+3y=−23 passing through the point (−22,6)
Click here to see answer by mathstutor494(120) About Me 

Question 800433: Find a formula for the linear function q(x) whose graph intersects the graph of
y=3000e−x/20
at x=80 and x=180.

Click here to see answer by josgarithmetic(39617) About Me 

Question 800472: SAT scores One small college has observed a downward trend in the average SAT score of applicants to the college. Analysis has resulted to the equation.
s=620 - 4.5t
where s equals to average SAT score for a given year t equals time measured in year since 1985(t=0).
(a) Identify the t and s intercept
(b) Interpret the meaning of the intercepts. (Does your interpretation of the t intercept make sense)
(c) Interpret the meaning of slope.
(d) Sketch the equation.

Click here to see answer by KMST(5328) About Me 

Question 800584: what equation of a line parrel to the line with equation, 8x-6y=7 and through point (6,-1)
Click here to see answer by Finavon(81) About Me 

Question 800604: slope=-1/5, passing through (1,2)
y-(-2)=-1/5(x-1)
point slope form: y+2=-1/5(x-1)
translate into slope-intercept form: This is where I get lost.

Click here to see answer by Alan3354(69443) About Me 

Question 800716: Triangle ABC has coordinates A(1,4) B (3, -2)C ( 4, 2). Find the coordinates of the image ABC prime after a reflection over the X - axis.

Click here to see answer by Cromlix(4381) About Me 

Question 800672: write a translation rule that maps D(7, -3) onto D' (2,5)
Click here to see answer by oscargut(2103) About Me 

Question 800667: Sam is installing ceramic tiles in his bathroom. The area of each tile is 97 square inches.To the nearest inch what is the length of one side of the tile.
Click here to see answer by thepianist25(8) About Me 

Question 800892: How many award designs must be sold in order to maximize the profit using the following P(x)=-0.4x^2+80x-1600. The teacher is asking me to also show my work algebratically.
Click here to see answer by MathLover1(20849) About Me 

Question 800941: graph 2x-5y=10
Click here to see answer by jim_thompson5910(35256) About Me 

Question 801168: find the area of a triangle with the
base 1 1/4 yds
height 4/9 yds

Click here to see answer by jatinlalwani30@gmail.com(4) About Me 

Question 801188: how do i solve which points are on the line y=8x-6
Click here to see answer by rfer(16322) About Me 

Question 801282: Equation for:
Parallel to 7x-3y=12 and passing through (-2,11)

Click here to see answer by stanbon(75887) About Me 

Question 801286: Determine if the following pairs of lines are parallel, perpendicular, or neither.
30x-25y=1
18y=-15x+1

Click here to see answer by harpazo(655) About Me 

Question 801243: I need help on solving two step equations i want it broken down very easily so that i will understand and shows me how to get the answer.11x-72=71
Click here to see answer by rfer(16322) About Me 

Question 801277: ( 7 ,1 ) and is perpendicular to the line 5 x + 2 y = 5 can be written in the form y = mx+b where m is -3.5 solve for b
Click here to see answer by KMST(5328) About Me 

Question 801691: solve each system of equations by the substitution method
-3x+y=7 5x+2y=3

Click here to see answer by waynest(281) About Me 

Question 801713: what is the slope of a line ( -3 ,2) (3 -2)
Click here to see answer by Cromlix(4381) About Me 

Question 801834: graph the line that contains the point (3,0) and has a slope of -2/3.
Click here to see answer by Edwin McCravy(20054) About Me 

Question 801855: In a survey of 7000 women, 4431 say they change their polish once a week. Construct a 99% confidence interval for the population proportion of women who change their polish once a week.
Click here to see answer by stanbon(75887) About Me 

Question 801830: can you please help me with this word problem please having trouble with coming up with the answers
Problem: An exam worth 145 points contains 50 questions. Some of the questions are worth two points and some are worth five points. How many two point questions are on the test? How many five point questions are on the test?

Click here to see answer by solver91311(24713) About Me 

Question 801702: Find the equation for the tangent line to the function f(x) = 4x3+3x2+5x+6 when x = 2.
Put your answer in slope intercept (y= mx+ b) format, and use it to identify the y-intercept for this line.
The y-intercept for the tangent line to the function f(x) = 4x3+3x2+5x+6 when x = 2 is ________________________?

Click here to see answer by Cromlix(4381) About Me 

Question 801839: Hi,
I need a step-by-step explanation of how to figure out which graph would answer this function. y=-2x+3 . My mathbook (Teaching Textbooks) gives me 5 different graphs and asks me to pick which one answers to the function. These are the five different graphs.
y=2x+3
A. (2,-5), (1,-1), (0,3)
B. (-3,-3), (-2,-1), (-1,-1), (0,3), (1,5)
C. (3,-3), (2,-1), (1,1), (0,3), (-1,5)
D. (2,-5), (1,-2), (0,1), (-1,4)
E. (1,-5), (0,-3), (-1,-1), (-2,1), (-3,3), (-4,5)
Thank you!

Click here to see answer by solver91311(24713) About Me 

Question 801951: Is it possible for the equation 2x+5=0 to have a solution in the set of positive real numbers? Explain your answer.
Click here to see answer by stanbon(75887) About Me 

Question 802019: I need help with his problem 2x-1/4y =5
Click here to see answer by Alan3354(69443) About Me 

Question 802031: 2x-1/4y=5 I don't know what i'm doing wrong on this problem so please help me
Click here to see answer by Alan3354(69443) About Me 

Question 802103: what is the answer to 4x-6=5x-14
Click here to see answer by stanbon(75887) About Me 

Question 802119: If a graph is a line that is parallel to the line
g(x) = −2x − 5
and contains the point
(5, 2),
determine the linear function.

Click here to see answer by josgarithmetic(39617) About Me 

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