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

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Question 136879: What is the distance between (6,-1)and (-3,7)?
Click here to see answer by checkley77(7051)

Question 136878: What is the distance between (6,-1)and (-3,7)?
Click here to see answer by checkley77(7051)

Question 137048This question is from textbook algebra 1
: i need the vertex of equation y equals -x^2+2x+3This question is from textbook algebra 1

Click here to see answer by stanbon(26274)

Question 137198: using the distance formula
how would u find a in the following problem
(-4,1)(a,8);d=square root of 50
Click here to see answer by checkley77(7051)

Question 138158This question is from textbook Algebra Structure and Method

: Could you help me with this problem? 2x-y= -4
So far i have that you have to move the 2x over with the negative 4 and you subtract 2x from that and i don't know what to do after that because you have to find the slope and the y-intercept and i don't know how to find it?
So could you please help me?
Thank you so much and i appreciate it!!!!!This question is from textbook Algebra Structure and Method

Click here to see answer by Earlsdon(4900)

Question 138782: Find the slope equation for slope 1.8 and y intercept 0,-5
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Question 139214This question is from textbook Prentice Hall Mathematics Algebra 1
: may you please graph each equation y-2=2(x-3)This question is from textbook Prentice Hall Mathematics Algebra 1

Click here to see answer by checkley77(7051)

Question 139503: Graph
3x-2y=-18
Click here to see answer by jim_thompson5910(13794)

Question 139504: Find the domain of the function
f(x)=1
_____
x-4
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Question 139750: Please help. The demand for cabinets depends on the price per cabinet. A manufacturer determines that the number of cabinets he can sell is d= -3p^2 + 114p-240, where p is the price per cabinet in dollars. At what price will the demand for cabinets be at a maximum?
Click here to see answer by solver91311(5072)

Question 139748: Can you help solve this? I got 1/16,384 I don't know if this is correct or not.
f(-3) for the function f(x)=2^4x-2
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Question 139747: Can you help me graph this? f(x)=3^x
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Question 139751: Will you help me with this?
The cost of a school banquet is $75 plus $12 for each person attending. What linear function models this problem for the cost of 60 people?

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Question 139749: Can you help solve this?
An arrow is shot upward and outward from atop a 81-foot cliff, with an initial velocity of 132 feet per second. The height of the rocket t seconds after launch is given by the equation h= -16t^2 + 132t +81. Find the greatest altitude reached by the arrow. Round to the nearest foot.
Click here to see answer by ankor@dixie-net.com(6693)

Question 140071: Can someone please help me with this? I have tried it several times but don't think I am doing something correctly. The problem is: What is the x and y intercepts of 2x-7y=6?
Click here to see answer by checkley77(7051)

Question 140447: it says to use slope intercept method to graph this y = 3/5x + 5
Click here to see answer by checkley77(7051)

Question 142499: On the problem, y = 7 - 2x could you tell me what part is the slope and what part is the y-intercept.
Thank you in advance,Elle J
Click here to see answer by MathLover1(1183)

Question 142846: Consider the function f(x)= x^2+4x+1
Find h, the x coordinate of the vertex of this parabola. Can i please see all the steps in solving this. Thanks
Click here to see answer by scott8148(3382)

Question 143076: I can't really remember how do you plot points side ways first or up and down?

Click here to see answer by stanbon(26274)

Question 143222: Hi, I solved this system of linear equations, but cannot find the x and y intercepts to graph the system. Any help would be appreciated. This is what I have so far.
x/3 - y/5 = 4 and 3x/4 + 2y/3 = 6
15(x/3 – y/5) = 4 and 12(3x/4 + 2y/3) = 6
5(x) – 3(y) = 60 and 3(3x) + 4(2y) = 72
5x – 3y = 60 and 9x + 8y = 72
45x – 27y = 540
- 67y = 180
y = -2.69
3x/4 + 2y/3 = 6
3x/4 + 2(-2.69)/3 = 6
3x/4 + -5.38/3 = 6
3(3x) + 4(-5.38) = 72
9x – 21.52 = 72
9x – 21.52 + 21.52 = 72 + 21.52
9x = 93.52
x = 10.39
This also checks out when I check x & y. Any help with finding the intercepts to graph would be appreciated. Thanks.

Click here to see answer by solver91311(5072)

Question 143535: what is the equation in slop-intercept form for 3x-4y=20
Click here to see answer by Fruglemiester1234(13)

Question 143605: y=x+2, y=3x+5
Click here to see answer by nabla(412)

Question 144009: if my coordinates are y=x^2 and y=2x how do i solve and plot this
Click here to see answer by checkley77(7051)

Question 144233: the line of an equation with a slope of 2/3 goes through the point (3,5). What is the y-coordinate of the point the line goes through when x=6
Click here to see answer by SRCCE(1)

Question 144638: For problems1, 2, 3
a. Tell whether the systems of equation have no solution, one solution or many solutions:
problem 1 - x+y-1
2x+2y=2
a.

b.
problem 2 - x+y=1
x-y=1
a.
b.
problem 3 - x+y=1
x+y=2
a.
b.
I have tried to solve thee many times, but I seem to come out with different answers each time. Please help me.

Click here to see answer by solver91311(5072)

Question 145227: Find the foci of a hyperbola with the equation 9y2 - 72y - 16x2 - 64x - 64 = 0.

Click here to see answer by stanbon(26274)

Question 145546: how will i plot and solve 2x-3y+6=0
Click here to see answer by checkley77(7051)

Question 145602: graph the following equations
y=-1/3x + 4
3y-9x=30
Click here to see answer by jim_thompson5910(13794)

Question 145679: Determine whether lines are parallel, perpendicular or neither.
y=3x-4
y=3x-9
Click here to see answer by Earlsdon(4900)

Question 145681: Find equation of each line in form of Y=MX+b
The line thru 3,2 and orgin
Click here to see answer by jim_thompson5910(13794)

Question 145677: Write in slope intercept form 3X-4Y=80
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Question 145678: Find equation that goes thru given point. (-1,-7) -6
Click here to see answer by Alan3354(6082)

Question 145996: how to solve problem y+6square root y=16? they say the answer is 4, but i don't know how they came to that conclusion
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Question 145996: how to solve problem y+6square root y=16? they say the answer is 4, but i don't know how they came to that conclusion
Click here to see answer by josmiceli(3009)

Question 146809: #1. Find a point on the line 2x + y = 8 that is equidistant from the coordinate axes. How many such points are there?
Click here to see answer by jim_thompson5910(13794)

Question 147106: find the nth term of each arithmetic sequence then graph the first five terms of the sequence
9,13,17,21
Click here to see answer by nerdybill(2446)

Question 147532: A circle is centered at the origin. The coordinates of one end point of a diameter are (3 + square root of 2, -4). What are the coordinates of the other endpoint of the diameter?
Click here to see answer by stanbon(26274)

Question 147536This question is from textbook algebra
: It asks, without drawing the graph of the given equation, determine: How many x-intercepts the parabola has,wether its vertex lies above or below or on the x-axis.
The problem is y=-x^2+2x-1. I have a hard time understanding how to solve it, please help me. Thank you=)This question is from textbook algebra

Click here to see answer by jim_thompson5910(13794)

Question 147837: I don't understand this: find the value of k if the line joining (4,k) and (3,1) is parallel to the line y=-1/2x-9/2
Click here to see answer by Fombitz(2113)

Question 148593: Give an ordered pair that is the solution to the equation y = 5x + 2.
Click here to see answer by Fombitz(2113)

Question 148816: I keep getting different answers, either 0 and -6, or -6 and 0
What am I doing wrong?

Find the coordinates of the x-intercept.
Please help,
Ellen
Click here to see answer by stanbon(26274)

Question 148813: I keep getting different answers. The teacher says two numbers required. I get 0, 10 and 10,0 Please help.
Find the y-intercept. -2x - y = -10
Please help,
Ellen
Click here to see answer by mangopeeler07(450)

Question 148817: I keep getting different answers, either 0 and -6, or -6 and 0
What am I doing wrong?

Find the coordinates of the x-intercept. -x - 2y = 6
Please help,
Ellen
Click here to see answer by nerdybill(2446)

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