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

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Question 882569: Find the equilibrium point for the pair of demand and supply functions.
D(p) = 700 - 32p
S(p) = 380 + 17p
Click here to see answer by Fombitz(32388)

Question 883971: if the endpoints of the diagonal of a rectangle are (4.5) and (-5-3) what are the coordinate of the other two vertices?

Click here to see answer by richard1234(7193)

Question 884164: 10 > 5x - 2y
Click here to see answer by DrBeeee(684)

Question 884366: Is (-1,0) a solution of -3x - 3y=2? Yes or No
Click here to see answer by josgarithmetic(39616)

Question 884365: What is the slope and y intercept of -2x+3y=3
Click here to see answer by geetha_rama(94)

Question 885868: Graph the pair of equations on the same axes. Give the coordinates of the point where the lines intersect.
x + y = 2
x � y = 6
Click here to see answer by kadash12(6)

Question 885957: c)Find the coordinates of the vertex of the parabola as well as those of the points where the
parabola intersects the x- and y-axes?
The parabola graph is y=x^2+2x-3
Click here to see answer by josgarithmetic(39616)

Question 886051: (4,?) is on the line below. Find the other half of the coordinate.
y = 2/7 x + 3
Click here to see answer by richwmiller(17219)

Question 886265: Change the equation 9x-8y+7 into an equivalent equation written in the slope-intercept form.
Click here to see answer by Alan3354(69443)

Question 886638: I NEED TO FIND THE MIDPOINT BETWEEN A AND B WHEN A IS (-1,5) AND B IS (7,-3).
I COME UP WITH POINT (3,1)--IS THAT RIGHT?
Click here to see answer by josgarithmetic(39616)

Question 886627: I need to calculate the distance between point a and b when a is (-1,5) and b is (7,-3). i come up with the square root of 128. Can that be right when there is no exact square root of 128?
Click here to see answer by josgarithmetic(39616)

Question 886966: Given f(x) below, graph over the domain [-3, 3], what is the range?
f(x)={x if x>=0
{1 if -1<=x<0
{x-2 if x<-1
Click here to see answer by stanbon(75887)

Question 887976: find the equation of line containing (4,-2)and perpendicular to the line.
Click here to see answer by josgarithmetic(39616)

Question 887977: find the equation of line containing (4,-2)and perpendicular to the line.
find the equation of a line containing (5,3) that is parallel to x axis
Click here to see answer by Alan3354(69443)

Question 888294: m=2/3 ; P(6,2)
Click here to see answer by luke94(89)

Question 888849: Find the lengths of the medians of the triangle with vertices A(1, 3), B(2, 6), and C(8, 1). (A median is a line segment from a vertex to the midpoint of the opposite side. Round your answers to one decimal place.)
Click here to see answer by Fombitz(32388)

Question 890329: what is the ordered pair for y=-3x+8 when x=5
Click here to see answer by Alan3354(69443)

Question 890328: what is the ordered pair for y=-3x+8 when x=4
Click here to see answer by Alan3354(69443)

Question 890735: Prove that the points A(-2,-2), B(2,1) and C(6,4) are on a straight lineز Show your work.
Click here to see answer by Alan3354(69443)

Question 890737: Prove that the triangle ABC whose vertices are A(2,-1), B(2,1) and C(-1,1) is a right-angled triangle. Calculate its area.
Click here to see answer by Alan3354(69443)

Question 890717: 10x+3y=75 , 6x-5y=7

Click here to see answer by Lapric(19)

Question 891052: Graph 3x+12y=-30
Click here to see answer by Fombitz(32388)

Question 893090: I have 2 questions I can't figure out.
Click here to see answer by richwmiller(17219)

Question 893091: Indicate the solution set for the system of linear inequalities by shading the appropriate region.

y < −x + 4
y > −x − 4

Click here to see answer by josgarithmetic(39616)

Question 893923: What is the area of the triangle formed by the three points (0,0), (2,4) and (4,2)?
Click here to see answer by fcabanski(1391)

Question 895043: Parallelogram ABCD is placed on a coordinate grid. A (5,-1) B (7,4), and C (7,8). Find the coordinates for D.
Click here to see answer by Fombitz(32388)

Question 895693: Draw the parallelogram with vertices A(2, 3), B(6, 3), C(4, 9), and D(8, 9) on a coordinate plane. (Each side of the quadrilateral should contain its vertices.
Click here to see answer by Fombitz(32388)

Question 896183: Which graph represents the inverse of h (x)=-3x+6? how would this appear on a graph?i
Click here to see answer by KMST(5328)

Question 896766: if A(3,0) B(0,4) and C(0,0) are the vertices of a triangle find length of AC without plotting
Click here to see answer by Alan3354(69443)

Question 897190: One of the problems on my geometry homework is "Write the equation of each line in slope-intercept form."
through (-6,2) and (3,6)
Click here to see answer by josgarithmetic(39616)

Question 897743: Plot 1 2/3 and 2 5/6 on a number line
Click here to see answer by Fombitz(32388)

Question 898098: find the perimeter of rectangle with vertices of (-1,5),(3,5),(3,-4)and (-1,-4).
Click here to see answer by josgarithmetic(39616)

Question 899437: Whats the equation of a line with a slope of 2/3 and a y-intercept of (0, -2)?
Click here to see answer by stanbon(75887)

Question 899437: Whats the equation of a line with a slope of 2/3 and a y-intercept of (0, -2)?
Click here to see answer by richwmiller(17219)

Question 898749: Sketch the graph of a function whose domain is the interval [0, 4] and whose range is the set of two numbers {1, 3}.
Click here to see answer by Fombitz(32388)

Question 900127: (?,5) 3x+8y-7=0
Click here to see answer by stanbon(75887)

Question 900220: Please help me with this question�Im not sure how the lines on the graph should look.
Complete the table of sol and use the results to graph the equation.
y=-x+4
x�-1, 0, 2
y�..
Should I just plug in the numbers they give for x?
Click here to see answer by josgarithmetic(39616)

Question 900383: hello I'm having trouble with this problem
Points in quadrant IV have a ______ x-coordinate and a ______ y-coordinate.
a.negative, negative
b.positive, positive
c.positive, negative-i picked
d.negative, positive
Click here to see answer by ewatrrr(24785)

Question 900389: hello I'm having trouble with this problem
which of the following are like terms?
a.7t+77
b.77+7t^2
c.7t+77t-i picked
d.77t-7t^2
Click here to see answer by ewatrrr(24785)

Question 900397: hello I'm having trouble with this problem
using the distance formula,d=/(x^2-x^1)^2+(y^2-y^1)^2,what is the distance between point (-1,0) and point (8,7) rounded to the nearest tenth?
a.11.4 units
b.4.1 units
c.7.0 units-i picked
d.13.0 units
Click here to see answer by ewatrrr(24785)

Question 900399: hello I'm having trouble with this problem
Using the Quadratic Formula, which of the following is the solution to the quadratic equation 5x2 + 10x � 5 = 0?
a..x=-1-√5,x=-1+√5
b.x=-1-√2,x=-1+√2
c.x=-1-√201,x=-1+√201-i picked
d.x=-1-√2,x=1+√2
Click here to see answer by ewatrrr(24785)

Question 900417: hello I'm having trouble with this problem
which of the following is the product of (-x-7)(3+1)?
a.-3x^2+20+7
b.-3x^2-20x+7
c.3x^2-20x-7
d.-3x^2-22-7-i picked
Click here to see answer by ewatrrr(24785)

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