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

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Question 352799: How do you find the equation of the line that passes through (-3,10) and (-1,18) in point slope form?
Click here to see answer by sofiyac(695)

Question 353631: how do i draw the line with the given slope and y-intercept of m=1,b=1
Click here to see answer by sofiyac(695)

Question 353634: in slope-intercept form with graphing the equation how will you slove y=5x-5/2
Click here to see answer by sofiyac(695)

Question 353633: y=(4/5)x-1
Click here to see answer by sofiyac(695)

Question 353632: How do I draw the line with the given slope and y-intercept of m=-3/7,b=14
Click here to see answer by sofiyac(695)

Question 353170: Graph the system
y is less or equal -5
x is less or equal 6
I am not sure how to graph this can someone help?
Click here to see answer by Fombitz(13828)

Question 353655: I have to find the slope of the line containing the two points:
(3,-2) (1,4)
I have completed the following:
m= 4-(-2)= 2
1-3 =-2
My question is do I add or multiply 4-(-2) then subtract the -2?
Click here to see answer by Fombitz(13828)

Question 353768: Please help me with this!...I do not understand how to get the other answers without using the letters that I am not allowed to use. I get all confused starting with the 4th question.

If you were to compute frequently the distance of a point from a line it would be handy to have a formula into which you plug the coordinates of the point and the equation of the line. At the end of this problem you will obtain such a formula. To help you along you can use WeBWorK to check your intermediate answers.
Let P be the point (p,q) and L the line y = m x + b. It is not necessary, but if you like you may assume that P lies below the line L. All your answers below should be algebraic expressions in terms of m, b, p and q. The slope of L is ____. The slope of a line perpendicular to L is ____. The line through P perpendicular to L can be written as y = s x + c where s is:___ and c is:___ . That line intersects L in the point Q = (u,v), where u is:___ and v is:___. The distance of P and Q is ____. The expression you enter here may be quite messy. However, if it is correct it can be simplified into a very concise and meaningful form. Make sure you check the solution of this problem when the set closes.
Hint: If you are bewildered by all the symbols ask yourself what they mean in the special case of the preceding problem, and compare your calculations for this problem with the numerical calculations you did earlier.
So here are the answers that I have so far.
1. m
2. -1/m
3. -1/m
4. ?
5. ?
6. ?
7. ?
Click here to see answer by stanbon(57219)

Question 353848: Determine the equation of the line containing the points (0, 32) & (100, 212).... Write the equation in "y = mx + b" form..... also write equation in "Ax + By = C" form
Click here to see answer by Alan3354(30959)

Question 353991: What would be the slope for (3,4) and (-2,1)

Click here to see answer by jim_thompson5910(28476)

Question 353991: What would be the slope for (3,4) and (-2,1)

Click here to see answer by rfer(12644)

Question 354025: find an equation of the line containing the given pair of points. Express your answer in the form x = a, y =b or y = mx +b
(-6,-6) & (9,9)
What is the equation of the line?
y= ____ (fraction or integer)

Click here to see answer by Alan3354(30959)

Question 354146: How do you graph 9x+y=5
Click here to see answer by ewatrrr(10682)

Question 354170: Solve and graph the following:
a+2 less than or equal -10.
Graph the sloution.
Click here to see answer by christydawn12(1)

Question 354201: Hi
Can you help me?
I cant figure this out:
How do you graph these equations by using the x and y intercepts?
x-y=3
10x=-5y
4x=2y+6
Thank you!!
Click here to see answer by blwinbbbles(106)

Question 354200: Hello
Im in Algebra 1 in 8th grade.
Could you help me?
Im having trouble figuring this out:
How do you graph these equation by making a table?
y=4
y=3x
y=x+4
Click here to see answer by ewatrrr(10682)

Question 354220: Im having problems solving this problem & then graphing them.
I need to find the x and y intercepts.
The problem is 4x-3y-12=0
Click here to see answer by rfer(12644)

Question 354199: Solve using the addition and multiplication principles.
4+5x<44
Click here to see answer by rfer(12644)

Question 354236: I need to find an equation for the following word problem please.
If you earnes an average of $25,000 over your working life and you retire after 2005 at age 62,63, or 64, then your annual Social Security benefit will be $7,000, $7,500 or $8,000 respectively. There is a linear equation that gives the annual benefit "b" in terms of age "a" for these three years. find the equation.
Stuck witht this problem. Could you please help? Thank you!!!
Click here to see answer by scott8148(6628)

Question 354301: what is find the slope of the line containing the points (-2,1) and (5,8)
Click here to see answer by Alan3354(30959)

Question 354295: *Solve the system graphically. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this
x - y = 2
x + y = 14

Click here to see answer by Earlsdon(6287)

Question 354360: -y+5=x
Click here to see answer by sofiyac(695)

Question 354466: two angles are supplementary. one angle is 280 degres less than three times the other. find measures of the angles . supplementary angles add to 180 degrees
Click here to see answer by mananth(12270)

Question 354476: ellen wishes to mix candy worth $1.80 per pound with candy worth $2.40 per pound to form 48 pounds of a mixture worth $2.00 per pound. How many pounds of the more expensive candy should she use.
Click here to see answer by mananth(12270)

Question 354489: translate the problem situation to a system of equations. do not attempt to solve.
The perimeter of a rectangular building is 190 feet. the width is 25 feet shorter than the length. what are the dimensions? (let W represent the width and L represent the Length)
Click here to see answer by robertb(4012)

Question 354594: It says to graph the linear equation
f(x)=1/3x+1
Click here to see answer by Alan3354(30959)

Question 354593: It says to graph the linear equation
f(x)=1/2x+1
Click here to see answer by Alan3354(30959)

Question 354652: how do I solve, I need three set of points in order to plot on my graph (I need to solve for y intercept.

y=3/2x+3
Click here to see answer by vleith(2825)

Question 354652: how do I solve, I need three set of points in order to plot on my graph (I need to solve for y intercept.

y=3/2x+3
Click here to see answer by ewatrrr(10682)

Question 354844: How do i solve the systems by graphing on this problem?
y = 3x - 17
y = -5x + 15
Click here to see answer by dlh(17)

Question 354840: Graph the solution set.
2x+5y ≥ 10
Click here to see answer by Fombitz(13828)

Question 354890: how do you sketch this piece equation in a graph?
---(1/3x-2, 3<3
y={
---(x-2, x>and equal to 3
Click here to see answer by Fombitz(13828)

Question 355085: How do I solve this?
The line through (3, 4) that is parallel to the line 5x + 3y = 9

Click here to see answer by mananth(12270)

Question 355084: How do I solve this?
The line through (-1, -2) with slope 3/7
Click here to see answer by mananth(12270)

Question 355044: solve for v: t -t = r over c-v
b a
Click here to see answer by Fombitz(13828)

Question 355135: find the slope of the line determined by the pai of points (-1,-7);(1,1)
can you please explain how i get the answer
thank you
Click here to see answer by Fombitz(13828)

Question 355142: please explain how you get the answer
find the slope and the y-intercept of the line 4x=-2y+7
thank you
Click here to see answer by Fombitz(13828)

Question 355142: please explain how you get the answer
find the slope and the y-intercept of the line 4x=-2y+7
thank you
Click here to see answer by mananth(12270)

Question 355149: please explain
find the equation of line in standard form, given that it passes through (-4,1) and slope-3
thank you
Click here to see answer by nyc_function(2733)

Question 355182: WRITE THE EQUATION FOR THE HORIZONTAL LINE THROUGH THE POINT (-3,5)
PLEASE EXPLAIN
THANK YOU
Click here to see answer by Alan3354(30959)

Question 355182: WRITE THE EQUATION FOR THE HORIZONTAL LINE THROUGH THE POINT (-3,5)
PLEASE EXPLAIN
THANK YOU
Click here to see answer by Edwin McCravy(8879)

Question 355203: PLEASE EXPLAIN
WRITE AN EQUATION FOR THE LINE THROUGH THE POINT (-6,-2) AND PARALLEL TO THE LINE X-4Y=4
THANK YOU
Click here to see answer by Fombitz(13828)

Question 355203: PLEASE EXPLAIN
WRITE AN EQUATION FOR THE LINE THROUGH THE POINT (-6,-2) AND PARALLEL TO THE LINE X-4Y=4
THANK YOU
Click here to see answer by ewatrrr(10682)

Question 355205: PLEASE EXPLAIN HOW YOU GOT THE ANSWER
WRITE AN EQUATION FOR THE LINE THROUGH THE POINT (1,1) AND PERPENDICULAR TO THE LINE 2X+Y=9
THANK YOU
JOHN
Click here to see answer by Alan3354(30959)

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