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Question 210324: select the system below which meets the following conditions:the slopes-intercept forms are identical,so the graph are identical.both equations share all their ordered pairs as solutions.answers:a.y+3x=5 y=2x+5 b.y=4x-1 y=3x-2 c.y=2x-4 y/2+2=x d.none of the above

Click here to see answer by MRperkins(300)

Question 210369: y-y1=m(g-g1) solve for m

Click here to see answer by stanbon(75887)

Question 210126: solve sqrt(7x+2<4)
a)x>1
b)x>2
c)x<2
d)-2/7 <= x<2
Click here to see answer by tutor_paul(519)

Question 210408: is the graph of x^2/9 - y^2/25=1 symmetric with respect to the x-axis,neither axis, or both axes.explain please.
Click here to see answer by stanbon(75887)

Question 210564: Write a system of linear equations in two variables having {(-2, 7)} as a solution set. (More than one system is possible.) Make sure that your system has two equations with two variables!

Click here to see answer by stanbon(75887)

Question 210158: solve 3y^2+4y-2<= 0
Click here to see answer by stanbon(75887)

Question 210120: find the inverse of f(x)=2 sqrt(x+3)
a) f^-1(x)=(x-3/2)^2
b)f^-1(x)= (x+3/2)^2
c)f^-1(x)= 1/2 sqrt(x-3)
d)f^-1(x)= 1/2 sqrt(x+3)
Click here to see answer by stanbon(75887)

Question 210118: which product represents the solution to the system:
-y+7x=14
-x+4y=1
a)
[1/27 4/27] . [1]
[7/27 1/27] [14]
b)
[-7/3 4/3] . [1]
[-1/3 1/3] [14]
c)
[7/3 -4/3] . [1]
[1/3 -1/3] [14]
d)
[-1/27 -4/27] . [1]
[-4/27 -1/27] [14]
Click here to see answer by stanbon(75887)

Question 210005: Find the value of K so that the point P lies on the line L. P(2,1), L; 3x + ky = 8
Click here to see answer by Earlsdon(6294)

Question 210645: Please help me understand this. I understand everything except this one.

Determine whether the graphs of the given pair of lines are perpendicular.
2x = 3
-3y = 6

The book says they are perpendicular, but I can't figure out why this is true. Thanks for your help!
Click here to see answer by Uniquaa(1)

Question 210750: A linear equation that represents a line parallel to the graph of y=7/4x-3 would have what slope?
Click here to see answer by tutor_paul(519)

Question 210772: Hi,I need some help solving this equation please
The ordered pair (3,2) is a solution of the equation 2x-5y=?
Click here to see answer by stanbon(75887)

Question 210706: Pls. help
1.)Solve for all unknowns algebraically.
2.) Graph both functions on the same set of coordinate axis. Label the intersection and tell which are the solutions obtained by graphical method.
(x-2)�+(y-3)�=4
x+y=4
so far i got the value of x=3+/-squareroot of 7 /2
and value of y =5+/-squareroot 7 /2
I'm not sure if my answer is right and i dont know how to graph this in the same set.
thank you very much

Click here to see answer by algebrapro18(249)

Question 210780: in a local highschool parking lot, the number of unrestricted parking spaces is 12 more than 7 times the number of spaces reserved for the handicapped. if there are 6452 parking spaces in altogether, how many are set aside for the handicapped?
I need it to have an isolated variable
Click here to see answer by nyc_function(2741)

Question 210808: Assuming that Fahrenheit temperature (F) and the Celsius temperature (C) are related by a linear equation, find F in terms of C. Use your equation to find the Fahrenheit temperatures corresponding to 30C, 22C, -10C and -14C. This is from Finite Mathematics and Applied Calculus by Waner and Constenoble. I know the answer is F=1.8c +32 for the first part and then the other answers are 86 72 14 and 7, but I do not understand how they got these answers.
Click here to see answer by rfer(16322)

Question 210866: Thank you in advance.
A business earned $6570 this year on an investment of $45,000 in mutual funds made last year. The two funds invested in were a pharmaceutical fund which paid out simple interest of 13% and a biotech fund which paid out simple interest of 16% . How much was invested in each fund a year ago to earn $6570 in combined interest?
Click here to see answer by stanbon(75887)

Question 210915: how do i graph (2,3) and (5,9)?

Click here to see answer by rfer(16322)

Question 210910: A local deprtment store is having a sale in which you receive $30 off any purchase over $50. A competing store is offering 30% off all purchases over $50. Write and graph two equations that describe the prices at both stores.
Click here to see answer by Theo(13342)

Question 210894: Pls. Help can't figure it out
The law of divine proportion, according to early Egyptians and Greek, states, �the most beautiful division of a line segment into two parts is such that the ratio of the longer part to the total length is equal to the ratio of the length of the shorter part to that of the longer part�
a.) If we consider the length of the line to be one unit and call t the length of the longer of the two parts, Find t.
b.) What is the proportionality constant for this ratio?
thank you very much
Click here to see answer by Theo(13342)

Question 210939: (13/4x) + (3/x^2) = (5/2x); Solve for x
Click here to see answer by DRichardson(63)

Question 210947: graph linear equasion by finding x & y intercepts
x=3y-4
Click here to see answer by DRichardson(63)

Question 210984: Please help find the equation of a line that is perpendicular to the line
y=-x+5 and passes through the point(-2,3).
Click here to see answer by stanbon(75887)

Question 211111: i need help with the following problem: write the equation of the line and graph the equation by using either the slope-intercept equation or by using x- and y- intercepts. the points are (4,6) (-1,2).
Please help
Click here to see answer by rfer(16322)

Question 211165: graph the line passing through (-3, -1), m = -1/5
Click here to see answer by checkley77(12844)

Question 211121: y+4=2/3(x-2)
Please run thru this question in an example form.
Thanks
Click here to see answer by jim_thompson5910(35256)

Question 211225: 3x - y = -3
2x + y = -7
3x = 10 - 2y
2x = 5 + 2y

Click here to see answer by Alan3354(69443)

Question 211230: graph and find the slope and y-intercept of y=5/4x+5? I know that the slope is 5/4 but I don't know how to graph it.
Click here to see answer by Earlsdon(6294)

Question 211224: The Phonex Suns won two more thaqn three times as many games as they lost. The Suns played 82 games. How many wins and losses did the team have?
Click here to see answer by Earlsdon(6294)

Question 211332: find the slope x intercept and y intercept of each line
1.)3x-y=6
2.)2x=4y=7

find the slope intercept form of the equation of the line passing through the point (3,-5) with a slope of -4
Click here to see answer by rfer(16322)

Question 211337: Please me find the equation of the line going through the point (-2,-3) and perpendicular to -2X+3Y=8
Click here to see answer by Earlsdon(6294)

Question 211363: (a) find an equation for the line passing through the point and parallel to the given line, and (b)find an equation for the line passing through the point and perpendicular to the given line. Support your work graphically.
Point (-2,3) Line y=-2x+4
Click here to see answer by checkley77(12844)

Question 211394: I am really bad when it comes to graphs and algebra. Need to graph the below line
y = 2/3x + 4
the 2/3x is actually a fraction

Click here to see answer by jim_thompson5910(35256)

Question 211396: Here's another graph:(
I need to find the slope of the line graphed below. Since I can't graph, below are the numbers:
y = (3,4)
x = (8, -3)
Not sure if this makes any sense or if I am in the correct area.
Click here to see answer by jim_thompson5910(35256)

Question 211448: write an equation for each line, then graph the line.
through (-1,3) and parallel to y=2x+1
through (2,2) and perpendicular to y=-3/5x+2
through (-3,4) and vertical
through (4,1) and horizontal
Click here to see answer by Edwin McCravy(20055)

Question 211562: Suppose that the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 50 inches. The formula for the perimeter of a rectangle is P=2L+2W.
a) Set up an equation for the perimeter involving only L, the length of the rectangle.
Answer:
b) Solve this equation algebraically to find the length of the rectangle. Find the width as well.
Answer: Length ______, Width ______
Show your work here:

Click here to see answer by checkley77(12844)

Question 211567: how do i find the equation of the line of symmetry for a graph
Click here to see answer by rfer(16322)

Question 211519: write an equation for a line that satisfies the given conditions which is through (9,10); undefined slope
Click here to see answer by checkley77(12844)

Question 211630: The sides of a rectangle are in the ratio 3:2. What is the length of each side if the perimeter of the rectangle is 55cm.

Click here to see answer by stanbon(75887)

Question 211622: Find the equation of the line through the given pair of points in standard form using only integers. (4,-1) and (-2,-6)
Click here to see answer by checkley77(12844)

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