Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!

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Question 38647: A general equation of the family of lines perpendicular to 2x-5y=7 is...
THE ANSWER IS: 5x+2y=k (BUT HOW DO U GET THIS?) please tell me how and why this is the answer
YOUR HELP IS MOST APPRECIATED, THANK YOU SO MUCH

Click here to see answer by Earlsdon(4900)

Question 38703: if y = 5x + 3, is the slope 5/1 or 5/0?
Click here to see answer by Nate(3495)

Question 40430This question is from textbook INTERMEDIATE ALGEBRA

: . Find the equation, in slope-intercept form, of the line that passes through the points (5,2) and (-7, 3).This question is from textbook INTERMEDIATE ALGEBRA

Click here to see answer by mbarugel(146)

Question 40614: Tell whether the points are the vertices of a parallelogram (that is not a rectangle), a rectangle, or neither.

(-7, -1), (2, -10), (16, -3), (7, 8)
Click here to see answer by smik(40)

Question 40798This question is from textbook intermediate algebra

: The equation of the st. line passing through (5,2) and (-7, 3) is
=
Cross multiplying
(x-5) = -12(y-2)
Expressing y in terms of x
y = + 2 = -x +
This is the slope intercept form of the given st. line.
Ans.: The slope is - and length of its intercept on x-axis is .This question is from textbook intermediate algebra

Click here to see answer by psbhowmick(456)

Question 40943: if points A,B,C on a coordinate line have cooridnates -5,3,and 10 respectively, find d(A,C) + d(B,C).
Click here to see answer by venugopalramana(3286)

Question 41214: By what number should you muliply the first equation to solve using elimination (of the x variable)?
-2x-3y=-4
-6x+4y=-38
a. 2 b. -4 c. 2 d. -2
Click here to see answer by fractalier(1804)

Question 42363: How exactly can I graph this using the intercept method.I'm totally lost..

Click here to see answer by psbhowmick(456)

Question 42362: This was in our practice ,and I'm lost.

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Question 42362: This was in our practice ,and I'm lost.

Click here to see answer by rapaljer(3625)

Question 42362: This was in our practice ,and I'm lost.

Click here to see answer by venugopalramana(3286)

Question 42501This question is from textbook BEGINING ALGEBRA

: Write the equation of the line x-intercept (12,0) and y-intercept (0,4).This question is from textbook BEGINING ALGEBRA

Click here to see answer by Nate(3495)

Question 42501This question is from textbook BEGINING ALGEBRA

: Write the equation of the line x-intercept (12,0) and y-intercept (0,4).This question is from textbook BEGINING ALGEBRA

Click here to see answer by nik_consult(24)

Question 42715: hi can you pls help me to my assignment?

2x+y=1
i need you help
Click here to see answer by tutorcecilia(2042)

Question 42704This question is from textbook algebra and trigonometry

: Inequality 2 x-10 <3 express the solution as an interval. thanksThis question is from textbook algebra and trigonometry

Click here to see answer by fractalier(1804)

Question 42702This question is from textbook algebra and trigonometry

: inequaliyt 7<4x+3<21, what is the intervalThis question is from textbook algebra and trigonometry

Click here to see answer by fractalier(1804)

Question 42837: what is the slope and y-intercept of a -2x+y=-1
Click here to see answer by fractalier(1804)

Question 42917: what is the equation of the ellipse with foci at (0,-4)and (0,4)and the sum of its focal radii being 10
Click here to see answer by fractalier(1804)

Question 42916: what is the equation of the ellipse with foci at (0,-4)and (0,4)and the sum of its focal radii being 10
Click here to see answer by fractalier(1804)

Question 42915: write an equation of a circle with center at the origen and radius 6.
Click here to see answer by fractalier(1804)

Question 42914: what is the equation of the perpendicular bisector of the line between the poins (2,2)and (6,6)

96
Click here to see answer by fractalier(1804)

Question 42913: what is the equation of the perpendicular bisector of the line between the poins (2,2)and (6,6)

96
Click here to see answer by fractalier(1804)

Question 42911: find the coodinates of the point c, halfway between the points a (5,1) and b (-2,7)
Click here to see answer by fractalier(1804)

Question 43213This question is from textbook algebra and trigonometry with analytic geometry

: Find the distance d(A,B) between the points A(-1,0) and B(4,3). I graphed it to be 5, I'm asking to see if my answer is right. thanks for any help given.This question is from textbook algebra and trigonometry with analytic geometry

Click here to see answer by Nate(3495)

Question 43214This question is from textbook
: Find all points having an x-coordinate of 2 whose distance from the point (-2,-1) is 5.This question is from textbook

Click here to see answer by Nate(3495)

Question 43215This question is from textbook algebra and trigonometry with analytic geometry

: determine the point A(x,y) so that the points A(x,y), B(0,3), C(1,0), D(7,2) will be the vertices of a parallelogram. I plotted it to be A(6,5) I'm asking to see if I plotted it right. Thanks for looking it over with me.This question is from textbook algebra and trigonometry with analytic geometry

Click here to see answer by Nate(3495)

Question 43218This question is from textbook
: find all points on the x-axis that are 5 units from the point (4,-3)This question is from textbook

Click here to see answer by Nate(3495)

Question 43523This question is from textbook

: Hello, I need help with the following question: If points A, B, and C on a coordinate line have coordinates -5, 3, and 10 respectively, find d(A,C)+d(B,C).This question is from textbook

Click here to see answer by jake_6233(74)

Question 43663This question is from textbook
: Find the distance from the point (-1,6) to the line y=2x-1.This question is from textbook

Click here to see answer by checkley71(8405)

Question 43734This question is from textbook algebra

: find the slope of the line containing the following
1)(-1,6)and(0,3)
2)(1\2,-1)and(3\4,2)
3)(6,6)and(7,4)

THANKS A LOT VERY MUCH !!!!!!!!This question is from textbook algebra

Click here to see answer by benni1013(141)

Question 44382: For the set of data below, give the window settings provided by the ZoomStat option.
x -2 -1 0 1 2
y 7 6 3 2 0

a. xmin = -2.4
xmax = 2.4
ymin = -1.19
ymax = 8.19

b. xmin = -10
xmax = 10
ymin = -10
ymax = 10

c. xmin = -0.7
xmax = 7.7
ymin = -2.68
ymax = 2.68

d. xmin = -3
xmax = 3
ymin = -9
ymax = 9

e. None of the others

Click here to see answer by stanbon(26297)

Question 44398: x+y=4
x-y=2
Click here to see answer by venugopalramana(3286)

Question 44404: b+2a=2
a=-3-b
Click here to see answer by venugopalramana(3286)

Question 44401: 6x-2y=2
9x-3y=1
Click here to see answer by venugopalramana(3286)

Question 44400: y=123.52x+89.32
y=-89.22x+33.76
Click here to see answer by stanbon(26297)

Question 44471: Having problem with my assignment, would someone plesae help me?
Determine the point A(x,y) so that the points A(x,y),B(0,3),C(1,0),D(7,2) will be the vertices of a parallelogram.

Find an equation for the line with y-intercept 3 that is perpendicular to the line y=2/3(actaully the fraction two-thirds)x-4.
Click here to see answer by venugopalramana(3286)

Question 44659: Determine if the pair of lines are parallel.
-8x + 2y = 8
y = (1/4)x-3
I came up with (-2,-4) and (4,-2) or should I have solved seperately for x and y in each problem.
Click here to see answer by adamchapman(301)

Question 44975: find the possible values of a if the points with the given coodinates are the indicated distance apart
(4,7), (a,3); d = 5
how do you do it? o.O <--- weird face lol
Click here to see answer by stanbon(26297)

Question 44973: find the possible values of a if the points with the given coordinates are the indicated distance apart.
(4,7),(a,3); d=5
(5,a), (6,1); d= square root of 10
(6,-3),(-3,a); d= square root of 130
Click here to see answer by Nate(3495)

Question 45157: I got this wrong. Solve this by the following system by graphing.

Click here to see answer by rapaljer(3625)

Question 45336: Find the midpoint of the segment that joins them.
(2,-1), (4,3)
Click here to see answer by Nate(3495)

Question 45336: Find the midpoint of the segment that joins them.
(2,-1), (4,3)
Click here to see answer by tutorcecilia(2042)

Question 45344: make a table of values and sketch the graph of the equation. and test for symmetry.4y= x (square)
Click here to see answer by Nate(3495)

Question 45349: Find an equation of the circle that stisfies the given conditions
centerCenter at the origin; passes through (4, 7)
Click here to see answer by Nate(3495)

Question 45346: Find an equation of the circle that stisfies the given conditions
center (2, -1); radius 3
Click here to see answer by tutmath(14)

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