Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 134696: the gate of a fence is 8ft. tall and 15ft. wide. how long is the diagonal strip (d) used to brace the gate
Click here to see answer by vleith(2825)

Question 134701: Last question for now please and thank you. Given two points (-1,-5) and (-5,-4) how would I write the standard form of that first using point slope form?
Thanks!
Click here to see answer by algebrapro18(206)

Question 134699: Given two points (-3,-2) and (4,-5) write the slope intercept form of the line. Again I need it solved by point slope form and then given the slope intercept form. I really need help!
y-y1=m(x-x1)
y=3/-7x+b
Click here to see answer by stanbon(57303)

Question 134698: If I'm given a line with a slope of 1/-3 that passes through the point (2, -3)
I need to use point slope form and find the slope intercept form of the line perpendicular to the line at (6,7)
7--3 which becomes 10= 3/1(6-2) but that isn't right I'm so confused please help!
Click here to see answer by stanbon(57303)

Question 134710: solving this is hard for me i just don't get it but here it goes -2x+7<-1 please note the < has a - underneath it did'nt know how to write it but neg -1 is part of expression
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Question 134708: 4/5x+9<12 i'm suppose to solve this problem but how?
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Question 134662: i dont get how to solve :y=x-3
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Question 134617: find the dimensions of the rectangle. if its length is twice its width. perimeter is equal to 208.
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Question 134613: Plot the following points on teh given rectangular corrdinate system by clicking on the given dots and dragging them.
(-4, -1)
(-2, 1)
(-2, 1)
(2, 5)
If you were to connect these points with a line, where would the y-intercept be located? Give ansewer in (x,y) form.
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Question 134787: Write an equation for the line that has the same slope as 2x-4y=13 and contains the point (6,8)
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Question 134823: I know I have to set this to Y= in order to find the points for the x and y intercept, but honestly my brain just quit on me. I need to graph the following:
Graph 2x-5y=10.
I have 2x-2x-5y=10-2x
-5y = -2x+12
-5y/-5= -2x+12
---------
-5
My answer was y=2/5x+12
But I know that's not right. The correct answer is y=2x/5+2
that is y= 2x over 5+2
Please help! Ever have one of those days your brain refuses to do anything but be jello?? lol BTW-This is not from a textbook. It is a worksheet.
Click here to see answer by stanbon(57303)

Question 134825: I know I have to set this to Y= in order to find the points for the x and y intercept, but honestly my brain just quit on me. I need to graph the following:
Graph 3x-y=4

The correct answer is y=3x-4
So that makes the slope 3/1 (3 over 1) and the y-intercept = -4 RIGHT???
Please help! Thanks!! This was my last question on my worksheet.
Click here to see answer by stanbon(57303)

Question 134615: one number is 4 less than 3 times a second number. if 3 more than twice the first number is decreased by twice the second, the result is 11.
Click here to see answer by ankor@dixie-net.com(15648)

Question 134939: Solve:
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Question 134941: Solve:
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Question 134942: Solve:
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Question 134943: Solve:
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Question 134945: Solve:
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Question 134946: Solve:
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Question 134947: Solve:
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Question 134949: sqrt(4x-3)=sqrt(x+9)
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Question 134950: sqrt(5-x)=x-3
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Question 134952:
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Question 134953:
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Question 135020: Find the equation of each line in the form y = mx + b if possible.
The line through the origin that is perpendicular to the line through (-3,0) and (0,-3)
Click here to see answer by josmiceli(9669)

Question 135019: Find the equation of each line. Write each answer in slope intercept form.
The line is parallel to -3x + 2y = 9 and contains the point (-2, 1)
Click here to see answer by checkley77(12569)

Question 135198:
sketch the graph of the equation: 4x+y=4
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Question 135192:
find the equation of the line connecting the points (2,12) and (3,15). Write your answer in slope intercept form.
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Question 135194:
Find the equation of the line through the point (4,3) that is perpendicular to y=4x-8. Write your answer in slope intercept form
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Question 135195: sketch the graph of y=-12
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Question 135190: find the equation of the line with slope 7 and y-intercept(0,-15). Write your answer in slope-intercept form.
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Question 135185: Find the equation of the line with slope 11 and y-intercept(0,3). Write the answer in slope-itercept form.
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Question 135182: Find the slope and y-intercept of the equation:
y+9=-3x
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Question 135197: sketch the graph of y=-12
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Question 135196: Find the equation of the line through the point (4,3)that is perpendicular to y=4x-8. Write your answer in slope-itercept form
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Question 135184: Find the equation of the line with slope 6 that goes through the point (6,4). Write your answer in slope-intercept form.
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Question 135096: P(x) is given both in standard form and factored form:
P(x)= -x^4+16x^3+22x^2-88x+51=-(x+3)^2(x-17)
a. use dominating term analysis and multiplicity of zeros to sketch by hand the graph P(x)
b. Use the graph obtained above to solve P(x)<0 Give your answer in interval notation.
Click here to see answer by solver91311(16877)

Question 135268: I really need to check my answer:
graph the rational function
f(x)= ^x^2/x^2-x-12
The whole equation is above the equal sign
Thank you for your help
Click here to see answer by stanbon(57303)

Question 135193: The value of a new car decreases immediately after purchase. The equation v=-3000t+28,000 represents the value, v, of a certain car, in dollars, where t is years since it was purchased. Find the v- and t-intercepts, and interpret their meaning in the context of this problem.
Click here to see answer by Fombitz(13828)

Question 135021: Draw the graph of each line using its y-intercept and its slope.
A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. the equation 0.10x + 0.30y =60 can be used to model this situation.
a) what do x and y represent?
b) Graph the equation
c) Write the equation in slope-intercept form.
d) what is the slope of the line?
e) what does the slope tell you?
Click here to see answer by stanbon(57303)

Question 135339: Thank you for taking the time to help. Here is the target graph equation and the first of a four part question;
Use the graph of y = x^2 -2x -8 to answer the following: a) Using the graph, what are the solution(s) to the equation x^2 - 2x -8 =0?

Click here to see answer by Nate(3500)

Question 135369: Solve and give answer in interval notation

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Question 135345: Thank you for taking the time help with these questions.
The path of a falling object is given by the function where represents the initial velocity in ft/sec and represents the initial height in feet. Also, s represents the height in feet of the object at any time, t, which is measured in seconds.
If a rock is thrown upward with an initial velocity of 40 feet per second from the top of a 30-foot building, write the height (s) equation using this information, then determine the height after two (2) seconds, how many seconds to reach maximum height and what is maximum height?

Click here to see answer by ankor@dixie-net.com(15648)

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