Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 479502: Given the equation (x - 2)2 + (y - 6)2 = 9 of a circle, identify the center and the radius.
Click here to see answer by mananth(12270)

Question 479624: what is the y-intercept of the line that contains the point (-4,0) and (0,-4) by graphing?
Click here to see answer by mananth(12270)

Question 479624: what is the y-intercept of the line that contains the point (-4,0) and (0,-4) by graphing?
Click here to see answer by Alan3354(31534)

Question 479780: could you help me to solve the equation 6y−9=4x+9 for y?
I found that it has more than one answer, but the website doesn't accept.
Thank you.
Click here to see answer by Alan3354(31534)

Question 479866: explain how to graph x + 3y = 3 using the x- and y-intercepts method.
Click here to see answer by nerdybill(7009)

Question 479878: The question says to write the standard form of the equation of the line described: perpendicular to 5y= 4x+2, x intercept 5
I understand how to get the inverse slope, and how to change it from standard to y-intercept form and back again, but how do I find the y intercept for this one?

Click here to see answer by scott8148(6628)

Question 479926: How do I graph y=2/3x
Click here to see answer by stanbon(57979)

Question 479952: what's 1/2 + 1/4 + 1/5 + 1/6 =

Click here to see answer by stanbon(57979)

Question 480208: I have to find the slope and the y-intercept from the equation 9-1/5y=5x
Click here to see answer by stanbon(57979)

Question 480249: Can someone please help me??? i need to write an equation of the line containing the given point and parallel to the given line (-8,8)3x= 5y+9
Click here to see answer by nerdybill(7009)

Question 480268: find the slope and the y-intercept of the line y=2x+5
Click here to see answer by Alan3354(31534)

Question 480216: Solve the following linear equation
X/2=-5
Click here to see answer by Alan3354(31534)

Question 480284: Input x is 10, 11, 12, 13
Output x is 3, 4, 5, 6
Find the function.
Click here to see answer by stanbon(57979)

Question 480329: x+4=y
y-x=-3
determine whether the graphs of the equations are perpendicular lines
Click here to see answer by Alan3354(31534)

Question 480416: Write the equation of the line which passes through (5, –2) and is parallel to x = 4
Click here to see answer by Tatiana_Stebko(1326)

Question 480527: write the equation of the line given m=2 and b=-1.
Click here to see answer by Alan3354(31534)

Question 480528: write the equation of the line (2,11) and (-1,-1). Thank you
Click here to see answer by Tatiana_Stebko(1326)

Question 480577: Find the slope of the line which passes through the points (0,-5) and (-5,12)
Click here to see answer by solver91311(17077)

Question 480576: Find the slope of the line passing through the points (5,8) and (6,12)
Click here to see answer by solver91311(17077)

Question 480564: Can you please help me with this problem? I need to solve for x.
6x-2 / 3 + x-3 / 2 = 1/5
Click here to see answer by Maths68(1474)

Question 480620: can someone show me how to graph y=-1 and show me how to get the plotting points
Click here to see answer by Alan3354(31534)

Question 480617: A line that passes through (-2, 7) and is parallel to the line 2x - y = 1 has equation?

Click here to see answer by htmentor(809)

Question 480653: I am trying to solve this equation Y=5/6x-2
Click here to see answer by wilft1(67)

Question 480664: slope = -8; (-2, -2)
Write in standard form an equation of the line passing through the given point with the given slope.
Click here to see answer by lwsshak3(6763)

Question 480685: write the equation of the line that is parallel to the line 4x+5y=7 and passes through the point (-1,8). thank you
Click here to see answer by lwsshak3(6763)

Question 480714: Instructions say: "Find an equation in standard form for the line described." The question is: "Through P (5, -2) and perpendicular to the line 2x-3y=6. Please help!!!
Click here to see answer by lwsshak3(6763)

Question 480808: find the y intercept of the line between (-12,8) and (10,-3)
Click here to see answer by Tatiana_Stebko(1326)

Question 480815: trying to answer this question and the program keeps saying i am wrong. not sure where i am messing up.
It wants me to answer in standard form and gives me a point of (3,1) with a slope of 2/5. sorry for being so vague.
Click here to see answer by Tatiana_Stebko(1326)

Question 480851: Find the slope of the line that contains (-7, -5) and (-4, -6)
Click here to see answer by ewatrrr(10682)

Question 480999: How do I work out the following question? Which of the following is the equation of a line that passes through (-2, -1) and (-4, -3)?
Click here to see answer by stanbon(57979)

Question 480995: find the slope of the line containing the two points
a. p1(8,-3)p2(2,1)
b, p1(-2,3)p2(4,-1)
Click here to see answer by ewatrrr(10682)

Question 480991: sketch the graph of f(x)=xsquared-6x+7 using intercept and symetry
Click here to see answer by stanbon(57979)

Question 481113: factor by grouping 10c² + 25c – 6c – 15
Click here to see answer by Edwin McCravy(8999)

Question 480998: solve the following equations;
3x+2y+7=0
6x+4y-8=0,
a. algebraically
b. graphically
Click here to see answer by mananth(12270)

Question 480989: graph using the slope intercept
a) y=3x+1
b) 3x-4y=12
Click here to see answer by Edwin McCravy(8999)

Question 481179: if in a triangle
∠a = 2∠b = 6∠c
find ∠a, ∠b, ∠c
please help

Click here to see answer by Alan3354(31534)

Question 481179: if in a triangle
∠a = 2∠b = 6∠c
find ∠a, ∠b, ∠c
please help

Click here to see answer by Edwin McCravy(8999)

Question 481208: I have to use the discriminant to determine the number of solutions of the quadratic equation, and weather the solutions are real or complex.
4/3x^2-2x+3/4=0
Click here to see answer by Alan3354(31534)

Question 481204: 6x^2-42x+72

I have to factor.
Click here to see answer by Alan3354(31534)

Question 481206: x^2-2/3x=0
I have to complete the square.
Click here to see answer by nerdybill(7009)

Question 481207: I have to use the discriminant to determine the number of solutions of the quadratic equation, and weather the solutions are real or complex.

2x^2+x-1=0
Click here to see answer by rfer(12730)

Question 481304: how would you do 4(3x-1)=10?
Click here to see answer by rfer(12730)

Question 481375: The Highlands Organic Farm in Cameron Highlands has a 50-acre farm on which to plant strawberries and tomatoes. The farm has 300 hours of labour per week and 800 tons of fertilizer available, and has contracted for shipping space for a maximum of 26 acres worth of strawberries and 37 acres worth of tomatoes. An acre of strawberries requires 10 hours of labour and 8 tons of fertilizer, whereas an acre of tomatoes requires 3 hours of labour and 20 tons of fertilizer. The profit from an acre of strawberries is RM400, and the profit from an acre of tomatoes is RM300. The farm management wants to know the number of acres of strawberries and tomatoes to plant to maximize profit.
a) Formulate the above as a linear programming problem

Click here to see answer by Theo(3504)

Question 481452: I recently enrolled in college, It's been a while since I have seen this stuff. All the help is greatly appreciated.
3x+7=2(x-1)

Click here to see answer by richard1234(5390)

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