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

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Question 58538: find the value of a such that the graph of the equation has the given slope:
y=2ax+4;m=-1
how would you solve this??
Click here to see answer by checkley71(8403)

Question 58538: find the value of a such that the graph of the equation has the given slope:
y=2ax+4;m=-1
how would you solve this??
Click here to see answer by funmath(2925)

Question 58528: Why can't the slope of a line be expressed as a decimal or a fraction?
Click here to see answer by checkley71(8403)

Question 58546: Graphing Linear Equations. Can you help me solve this equation? 4x+4y=2

Click here to see answer by checkley71(8403)

Question 58546: Graphing Linear Equations. Can you help me solve this equation? 4x+4y=2

Click here to see answer by funmath(2925)

Question 58541: can someone help me out with this and show me how to put a line containing the points (1,4),(2,7, and (3,10)in slope-intercept form an equation and how i would graph this i am confused
Click here to see answer by checkley71(8403)

Question 58536: given these two points on a line, write the equation in slope-intercept form:
(5,-13) and (2,-1)
i did the coordinate approach and came out with: -1-(-13)/2-5=-4, which is the slope. to find the y=intercept, i took one of the points and did: 2=-4(-1)+b. I came out with 2=4+b. now subtracted 4 from both sides and got: 4-2=4+b-4 which simplifies to:-2=b. so my final equation would read: y=-4x+(-2). is this correct??
Click here to see answer by checkley71(8403)

Question 58524: complete the ordered pairs for the equation 2x+y=10
(5, ),( ,10),(,2) (0,)
Click here to see answer by funmath(2925)

Question 58514: Find the slope of the line & graph: -4x + 2y = 8 Slope:_________

Click here to see answer by funmath(2925)

Question 58549: what is the slope -2 and y intercept(0,0)how do i write the line equation
Click here to see answer by funmath(2925)

Question 58577: I am trying to graph 3x+2y=6 I do not know if the lines on the neg or pos I am having problems reading graphs. are Could you show me a graph for this? Please help a panic person with this
Click here to see answer by ankor@dixie-net.com(15652)

Question 58612: Solve each literal equation for the indicated variable.
2x + 3y = 6 (solve for x)
Click here to see answer by funmath(2925)

Question 58617: Solve each literal equation for the indicated variable.
D = C - s Depreciation (solve for for s)
-----
n
When I post the problem, it does not look right. It should read (D) equals (C) minus (s) over (n. The (C) - (s) over (n) in in fraction form.
Click here to see answer by faceoff57(82)

Question 58634: How can I graph x=3
Click here to see answer by funmath(2925)

Question 58633: How can I rewrite the equation 4x – 6y = –30 as a function of x.
Click here to see answer by funmath(2925)

Question 58620: Write the equation of the line given:
a. m= -1/2 though (2,4)
b. Through (1,5) & (-2,1)
Click here to see answer by checkley71(8403)

Question 58620: Write the equation of the line given:
a. m= -1/2 though (2,4)
b. Through (1,5) & (-2,1)
Click here to see answer by funmath(2925)

Question 58618: Find the slope of the line:
a. 3x-6y=7
b. y + 5 = 2
c. 2x= 5
Click here to see answer by funmath(2925)

Question 58512: Find the slope of each line:
a. 3x=6 Slope:

b. 3/2y=9 Slope:

Click here to see answer by funmath(2925)

Question 58647: My problems states" What are the coordinates of the point of intersection of y=3x-2 and 3-2x?
Click here to see answer by funmath(2925)

Question 58646: My problems states" What are the coordinates of the point of intersection of y=3x-2 and 3-2x?
Click here to see answer by funmath(2925)

Question 58653: Determine which two equations represent perpendicular lines.
y = x – 3
y = 3x –
y = x +
y = x –3

Click here to see answer by funmath(2925)

Question 58687: Determine which two equations represent perpendicular lines.
y = 4/7x-3
y = 3x-4/7
y =-1/3x+4/7
y =1/3x-3 4/7

Click here to see answer by checkley71(8403)

Question 58699: Write the equation of the line that passes through point (–2, 3) with a slope of –4

Click here to see answer by funmath(2925)

Question 58698: Write the equation of the line passing through (3, –7) and (–6, –7)

Click here to see answer by funmath(2925)

Question 58539: A group of mountain climbers begin an expedition with 265 lb of food. They plan to eat a total of 15 lb of food a day.
a. write an equation in slope intercept form(i think they're refering to y=mx+b) relating the remaining food supply r to the number of days d. Are they saying that r would be the slope, and d the y-intercept?? I don't get it. how would i figure out what to plug in? would the slope be 15 and y-intercept 265???
c. The group plans to eat the last of their food the day their expedition ends. use your graph(i'll figure one out) to find out how many days they expect the expedition to last. i'm thinking about 17 because 265/15 equals 17.666666....can someone plz help??
Click here to see answer by funmath(2925)

Question 58645: My problems states" What are the coordinates of the point of intersection of y=3x-2 and 3-2x?
Click here to see answer by stanbon(57347)

Question 58761: I am having problems understanding parabola grafting. Example, if I am given a problem that says:
graph y=-2x (to the second power)
How do I set up my table of solutions for x and y?

Click here to see answer by checkley71(8403)

Question 58648: Solve the systems of equations graphically
{y=3x-12
{y=4x=2
Click here to see answer by funmath(2925)

Question 58771: How do i solve 5x+9=30
Click here to see answer by checkley71(8403)

Question 58781: Find the slope of any line parallel to the line through points (14, 2) and (5, 5).
Click here to see answer by funmath(2925)

Question 58784: When you have to "Solve each system by graphing" on these two equations. How do you know what to multiply each side of the equation by. How do you know what number will work to solve and get the ordered pairs? I have this example:
2x + y + 2
2x + y + 8. I am to Solve each system by graphing.
thank you.
Click here to see answer by funmath(2925)

Question 58787: Graph using the intercept method: 2x + y = 4.
Click here to see answer by funmath(2925)

Question 58786: Complete the ordered pairs for the equation y = 8x + 16.
(0),(7/8),(0),(-7/8)
Click here to see answer by funmath(2925)

Question 58730: I'm trying to find how to solve for the following equation.
Find the slope/intercept form of a linear equation that is perpendicular to Y=5x and passes through the point (-5,-5). Graph both lines to see that they are perpendicular.
Thank for the help
J.B. Gaskins
Click here to see answer by funmath(2925)

Question 58844: I struggle with inequalities and some equations, here is one that i have to graph: y=3/5x-4
Click here to see answer by stanbon(57347)

Question 58844: I struggle with inequalities and some equations, here is one that i have to graph: y=3/5x-4
Click here to see answer by funmath(2925)

Question 58896: Hi! What's the formula for finding a slope
Click here to see answer by funmath(2925)

Question 58865: Find the equation of a line that goes through the y-intercept of 2x-3y=24 and the x-intercept of 5x+6y=30. Leave your answer in slope-intercept form.
Click here to see answer by venugopalramana(3286)

Question 58925: Homework question: Express it in standard form.
Through (-3,5) and (5,3):
Choices are:
X+4y = 23 , 4X+y=23 , x-4y=17 , X+4y = 17. How do I solve? Thanks!
Click here to see answer by stanbon(57347)

Question 58927: X is greater than or equal to 8, when graphing is the circle on 8 open or closed
Click here to see answer by stanbon(57347)

Question 58931: Here's what i did:
the equation is 2-y=x-6. I'm trying to get it into standard form of a linear equation.
I subtracted 6 from both sides and came up with: 8-y=x.
I added 8 to both sides and got -y=x+8.
Then i subtracted y from both sides and came up with the equation x-y=8. did i do this right? and would the x-intercept be (8,0), and y-intercept (0,-8)?

Click here to see answer by uma(370)

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