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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 388823: Please help. The line passing though (7,y) and (1,0) is parallel to the line joining (4,4)and (-2,1). Find y.
Click here to see answer by rfer(16322)

Question 388823: Please help. The line passing though (7,y) and (1,0) is parallel to the line joining (4,4)and (-2,1). Find y.
Click here to see answer by lwsshak3(11628)

Question 388868: The perimeter of a rectangle is 50cm. if its length exceeds its breadth by 5cm,find the dimensions of the rectangle.
Click here to see answer by mananth(16946)

Question 388911: Choose the correct description of the end behavior of the function y = 0.5x

A)
As x → ∞, y → 0.
B)
As x → -∞, y → 0.
C)
As x → ∞, y → ∞.
D)
As x → -∞, y → -∞.
Click here to see answer by richard1234(7193)

Question 388924: write the equation in slope intercept form of the line that is parallel to the graph of each equation and passes through the given point

y=3xt6;(4,7)
Click here to see answer by stanbon(75887)

Question 388953: a line with equation y=5+7x has what slope ?
Click here to see answer by richard1234(7193)

Question 388953: a line with equation y=5+7x has what slope ?
Click here to see answer by edjones(8007)

Question 388953: a line with equation y=5+7x has what slope ?
Click here to see answer by ewatrrr(24785)

Question 388974: p(0,3); q((-10,-13) what is the mid point of line segment
Click here to see answer by haileytucki(390)

Question 388974: p(0,3); q((-10,-13) what is the mid point of line segment
Click here to see answer by rfer(16322)

Question 389123: 1. Write an equation of the line that passes through the given two points ( -3 , 5 ), ( 41 , -127 )
2. Write the slope of the line passing through the two points ( -4 , -1 ), ( -6 , 6
3.Write the slope of the line passing through the two points ( 7 , -3 ), ( -3 , 5 )
4. Solve each system of equations using the elimination method5x + 6y = -75x - 3y = 146
5.Write the slope-intercept form of the equation 3y = -15 + 3x
Click here to see answer by Alan3354(69443)

Question 389130: 1.Solve each system of equations using the elimination method.11x + 16y = 922x + 3y = 18
2.Solve each system of equations using the substitution method. 4x - y = 32y = -2 x + 70
3.Rewrite the linear programming problem as a maximization problem with constraints involving inequalities of the form≤ a constant (with the exception of the inequalities x≥0, y≥0, and z ≥0).
Minimize C = 2x-3y
Subject to 3x +5y ≥20
3x+y≤16
-2x+y≤1
x≥0, y≥0
4. Find the distance between P and Q.P ( -8 , -9 ) and Q ( 10 , -9 )
5.Find the distance between P and Q. P ( -9 , -5 ) Q ( 9 , -21 )
6.Write an equation of the line that passes through the given two points ( -2 , 7 ), ( 4 , -23 )

*[invoke calculating_slope -2, 7, 4, -23]

Click here to see answer by MathLover1(20849)

Question 389136: how can i find the x and y intercepts of the equation c=j+1?
Click here to see answer by Alan3354(69443)

Question 389136: how can i find the x and y intercepts of the equation c=j+1?
Click here to see answer by MathLover1(20849)

Question 389150: how can i find the x and y intercepts of the points (2, 2) and (4, 1)?
Click here to see answer by Alan3354(69443)

Question 389163: For a homework assignment, I have to "find the slope of the line through each pair of points". The first example is (19, -16), (7,-15). I don't know where to start. Please help, and thanks in advance.
Jim Dunlap
Click here to see answer by jim_thompson5910(35256)

Question 386690: Find the equation of the line perpendicular to the line: 2x-3y=4 and passes through the point (-4,1)
Click here to see answer by robertb(5830)

Question 389217: Find the intercepts of the given equation. Express each as an ordered pair
Y=5x+10
I am not just looking for the anwser to this problem, I would like it if you could please tell me step by step how to get the anwser to this problem so I have a guide for future problems. Thank you very much,
Joseph Gray
Click here to see answer by ankor@dixie-net.com(22740)

Question 389218: Hello
I need help with this math Problem with step by step directions on how you came about the anwser so I have a guide for future problems.
Thank you so much for your help,
Joseph Gray
Solve 8x-7y = 16 For y

Click here to see answer by Fombitz(32388)

Question 389221: I need step by step dircetions on how you came about he anwser to this problem so I have a guide for future problems.
Thank you so much for your help,
Joseph Gray
Explain the distributive property, and use it to rewrite the expression.
9(3x+8y)
Click here to see answer by Edwin McCravy(20055)

Question 389269: Write the equation of a line that is perpendicular to the given line and that passes through the given point.
�4x � 8y = 24; (4, �1)
Click here to see answer by ewatrrr(24785)

Question 389346: Find Slope and y-intercept for lin y=-2x+8
Click here to see answer by richard1234(7193)

Question 389411: Write an equation in point-slope form of the line with slope �8 that contains the point J(�3, 2).
Click here to see answer by ewatrrr(24785)

Question 389422: A line passes through (7, �6) and (8, �5).
a. Write an equation for the line in point-slope form.
b. Rewrite the equation in standard form using integers.
Click here to see answer by ewatrrr(24785)

Question 389457: Find the linear equation in standard or slope intercept form given the points
(-6,-4) (-2,-2)
Could you please show your work so I can figure out where I went wrong!!! Have been working on these for a long time and need a little help.
THANK YOU very much!!!!!
Click here to see answer by ewatrrr(24785)

Question 389531: Please help me. I missed a week of school and I am so lost. I have this take home test that is due soon.
So, the first problem is to write an equation of the perpendicular bisextor of the line segment whose endpoints are (-1. 1) and (7, 5) and there is also a grid provided for me but it is optional. Can you please explain this step by step so I could understand other math material. Thank you!
Click here to see answer by haileytucki(390)

Question 389496: Write linear equations in slope intercept or standard form given the following information. (-4,1) m=-13/6
Click here to see answer by haileytucki(390)

Question 389496: Write linear equations in slope intercept or standard form given the following information. (-4,1) m=-13/6
Click here to see answer by rfer(16322)

Question 389591: Find the linear equation in slope intercept or standard form for the following.
(7,-2) m=8/7 Thank you. You people are GREAT!! Helping me alot!!!
Click here to see answer by Earlsdon(6294)

Question 389623: Solve the inequality.
-5x � 7 < 28
Click here to see answer by checkley79(3341)

Question 389644: what type of slope does y < 3 have?
Click here to see answer by haileytucki(390)

Question 389689: The value v of a shopkeeper's inventory software program is given by v=-1/3t+3, where t is the number of years since the shopkeeper brought the program, what is the program worth 9 years after it is first purchased? Plot the point with the t value 9.
Thank you so very much. I honestly have to admit that if it wasn't for tutors like your selves, I couldnt make it through college. Thank you, again!
Click here to see answer by jim_thompson5910(35256)

Question 389680: 4. The line
y=0.15x+0.79
represents an estimate of the average cost of gasoline for each year. The line
0.11x-y=0.85
estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006).
a) Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your reasoning.
b) Use the equations of the lines to determine if they are intersecting, parallel, or perpendicular. What did you find?
c) Did your answer to part b confirm your expectation in part a?

Click here to see answer by richard1234(7193)

Question 389698: graph the linear system and tell how many solutions it has
what does it mean?
x+y=1
2x-3y=12
Click here to see answer by ewatrrr(24785)

Question 389686: 1. Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: c(g)=3.12(g)
a) What does the number 3.12 represent?
b) Find C(2)
c) Find C(9)
d) If you were to graph C(g), what values would make up an appropriate domain? Range? Explain your reasoning and remember to include ALL appropriate values.

Click here to see answer by richard1234(7193)

Question 389678: 2. Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was $1.26 and in January 2006 the price of regular unleaded gasoline was $2.31 (Bureau of Labor Statistics, 2006). Use the coordinates (1997, 1.26) and (2006, 2.31) to find the slope (or rate of change) between the two points. Write your answer as a fraction or integer and describe how you arrived at your answer.
Click here to see answer by richard1234(7193)

Question 389757: the equation of a line that has a slope of 4 and a y-intercept of 6 ?
all i know is m=4 and y=6
Click here to see answer by richard1234(7193)

Question 389813: Solve the system of linear equations using the Graphing Method.
2x+y=5
3x-2y=4
Click here to see answer by mananth(16946)

Question 389812: Solve the system of linear equations using the Graphing Method.
x+3y=12
2x+y=4
Click here to see answer by mananth(16946)

Question 389822: write in slope-intercept form the equation of the line that passes through the given point and is perpendicular to the given line (4,-6),y=5/7x+17
Click here to see answer by mananth(16946)

Question 389828: write in slope-intercept form the equation of the line that passes through the given point and is perpendicular to the given line (-2,1),y=3x+3/4
Click here to see answer by mananth(16946)

Question 389827: write in slope-intercept form the equation of the line that passes through the given point and is perpendicular to the given line (0,0),y=1/2x-1
Click here to see answer by mananth(16946)

Question 389865: Given the following coordinates: (9,8), (4,7), I need to write an equation in standard form for the line that contains each pair of points.
I come up with: x + 5y = -31, my book says: x - 5y = -31
Please explain. Thank you for your help.
Jean
Click here to see answer by ewatrrr(24785)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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