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Question 771225: in my maths homework i have been asked to solve a equation using elimination or substitution with the rules x=2y+3 and x=2.5y+2 to work out the coordinates how may i do this?
Click here to see answer by josgarithmetic(39617)

Question 771235: how can i solve a equation using elimination with the rules x=2y+3 and x=2.5y+2 and with the coordinates ending up to be (2,7)
Click here to see answer by Alan3354(69443)

Question 771259: x+4<-7
Click here to see answer by oscargut(2103)

Question 771286: What is the equation of the line parallel to the line given by y+2=0 and passing through (1.5,)?
Click here to see answer by Jc0110(165)

Question 771295: Are the following lines parallel, perpendicular, or neither?
L1 with equation x � 5y = 25
L2 with equation 5x + y = 5

Click here to see answer by oscargut(2103)

Question 771296: What equation defines a line that has a slope of -3 and passes through the point (-2, 6) on a graph?
Click here to see answer by Jc0110(165)

Question 771298: The three points (5,3), (-2,1),and(-1,-5)are vertices of a triangle. Determine the equations which can be used to model each side of the triangle.
Click here to see answer by Alan3354(69443)

Question 771328: The number of years a person born in the United States is expected to live can be approximated by the equation y=0.189x+70.8, where x is the number of years since 1970. Solve this equation for x. Use this new equation to determine in which year the approximate life expectancy will be 80.9 years.
Click here to see answer by oscargut(2103)

Question 771331: In point-slope form, write the equation of the line that passes through the given points, (-2,8) and (2,-8)
Click here to see answer by oscargut(2103)

Question 771353: I need help solving these kind of problems........through (-4,0); parallel to y=3/4x-2. Idk how to begin it.
Click here to see answer by oscargut(2103)

Question 771405: -3(x+1)-x/2+3/2<0
Click here to see answer by algebrahouse.com(1659)

Question 771444: Write the equation of a line that passes through (4, 0) and (-4, -5). Write your answer in slope-intercept form.
Click here to see answer by Jc0110(165)

Question 771489: what is the x-intercept of y=1/3x -6

Click here to see answer by Cromlix(4381)

Question 771575: Could you explain how to solve this problem? It is supposed to plot 2 points on a coordinate graph. Here it is(8/3 and 80/3 are fractions, x is a variable not a multiplication sign, all the variables are undefined);
y = 8/3 x + 80/3 , 10 ≤ x ≤ 13
Click here to see answer by josgarithmetic(39617)

Question 771586: Please help me solve the solution for the equation y = 6.3964x^0.0069x.
The equation came out from an Excel plot, as a logarithmic slope, with R^2 = 0.6784.
Click here to see answer by Alan3354(69443)

Question 771646: 6(x2+4x)+10(4x2+3x)
Click here to see answer by MathLover1(20849)

Question 771747: X+4=8
Click here to see answer by tommyt3rd(5050)

Question 771762: Find the slope between points (-2, 5) and (1, 6).
Click here to see answer by oscargut(2103)

Question 771774: y=4x-2
y=-7x+5
-2y=12x+18

Click here to see answer by Alan3354(69443)

Question 771782: Find the slope-intercept equation of the line with the following properties:
Perpendicular to the line 3𝑥+2𝑦=31; containing the point (7,−5).
Click here to see answer by Alan3354(69443)

Question 771804: parrallel graph of 2x -y =1 Y intercept (o,-3)
Click here to see answer by josgarithmetic(39617)

Question 771870: x+y-3=0
x-y-1=0
2x-4y+4=0
2x-11y-22=0
Click here to see answer by yrubin07(2)

Question 771927: are the following lines perpendicular? y=6x-3 y=-1/6x-2
Click here to see answer by Cromlix(4381)

Question 771943: I don't understand how pick which graph matches the equation f(x)=5x^2+9x+1 please help and explain. Thank you.
Click here to see answer by oscargut(2103)

Question 771969: How do you find the value(s) of k that make two lines parallel?
ex. 5x+ky=3 parallel to 6x-4y=6
Click here to see answer by MathLover1(20849)

Question 772039: Find the slopes, if possible, of the line passing through each pair of points.
(2, -1) and (6, 3)

Click here to see answer by MathLover1(20849)

Question 772099: Consider the system
Kx+4y=0
2x+2y=0
This system will have a unique solution when
A.K=4 or B.K is a real number?

Click here to see answer by josgarithmetic(39617)

Question 772148: can you please help me solve the linear equation:
5.3=l/4
Click here to see answer by tommyt3rd(5050)

Question 772253: I need help with finding out the slope intercept of a line when given two points.
What would the slope intercept form be for a line that passes through (0,-8) and (5,-6)?
Click here to see answer by solver91311(24713)

Question 772339: slope -3 and Y intercept (0,7)
Click here to see answer by tommyt3rd(5050)

Question 772383: Write the equations of three lines that intersect only at the point (1; 5).
Click here to see answer by nerdybill(7384)

Question 772390: Solve the following system of simultaneous equations using the elimination method.
x + 8y = 4
5x + 2y = 96
Click here to see answer by oscargut(2103)

Question 772409: Write a slope intercept equation of the line who's graph is parallel to Y=8x-2 and has the Y intercept (0,6)
Click here to see answer by oscargut(2103)

Question 772410: y=4x+2 and 5y+4x=8 are they parallel?
Click here to see answer by solver91311(24713)

Question 772408: slope 7/3;Y intercept (0,-2)
Click here to see answer by Cromlix(4381)

Question 772382: Write down the equation of the line in the xy-plane with gradient 2 and y-intercept (0; 3).
Click here to see answer by Cromlix(4381)

Question 772432: I am having trouble figuring out the distance formula using three points:
a(0,0) b(3,y1) c(3,y2). Also how do you plug in the answers to an x,y,axis graph? Please help!
Click here to see answer by solver91311(24713)

Question 772429: On a graph paper , take 2 cm to represent one unit on both axes, draw the lines:
x+3=0,y-2=0,2x+3y=12.
write down the coordinates of the vertices of the triangle

Click here to see answer by Alan3354(69443)

Question 772352: Find the slope of a line perpendicular to the line that passes through the following points.
( 4, 11) and ( -2, 1)

Click here to see answer by Cromlix(4381)

Question 772505: What is the equation of the line passing through the origin and parallel to the line passing through the points (2,8) and (4,12)?
Click here to see answer by lwsshak3(11628)

Question 772545: a. Write an equation of the line which goes through (2,-3) ad is perpendicular to the line -2x + y = -17 .
b. Write an equation of the line which goes through (.4,11) and is parallel to the line y + 3/4x - 22 .
Click here to see answer by solver91311(24713)

Question 772274: Twice a number when decreased by 7 gives 45.find the number
Click here to see answer by tommyt3rd(5050)

Question 772920: -4x+4y=4 into slope interform
Click here to see answer by jim_thompson5910(35256)

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