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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 761432: the slope of a line perpendicular to this line is ________ x + 2y =8
Click here to see answer by solver91311(24713)

Question 761432: the slope of a line perpendicular to this line is ________ x + 2y =8
Click here to see answer by MathLover1(20849)

Question 761532: How does y=(-1/2)x+3 change into x+2y-6=0?
Click here to see answer by stanbon(75887)

Question 761563: write an equation of the line that passes through (-2,3) and is perpendicular to the line y=2x+1
Click here to see answer by ramkikk66(644)

Question 761616: Consider the line 8x-6y=3
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Click here to see answer by ramkikk66(644)

Question 761625: What is the ordered pair that is the solution to these equations.
2x + 5y = -9
3x - 4y = -2

Click here to see answer by ramkikk66(644)

Question 761587: Assume that you sell two sizes of storage sheds: large and small. The large size requires 12 feet of lumber and takes 3 hours to build. The small size requires 8 feet of lumber and takes 1 hour to build. You can use 48 feet of lumber each day and plan to spend at most 9 hours per day to build the sheds.
a. Model the situation above. Your algebraic model should be a system of four inequalities.
b. You sell the large sheds for $70 each and the small ones for $30 each. What numbers of each kind should you make per day in order to maximize your income?

Click here to see answer by josgarithmetic(39617)

Question 761640: Choose the equation of the line with slope =-6 and containing the point (6,15)
Click here to see answer by lwsshak3(11628)

Question 761678: Input in standard form the equation of the given line.
The line with m = -3/8 and passing through (5, -4)
Click here to see answer by josgarithmetic(39617)

Question 761679: Write an equation for the line that is parallel to the given line and passes through the given point. y = x + 8; (2, 16)

Click here to see answer by ramkikk66(644)

Question 761696: Here is part of the table of a linear function. Figure out an equation for the
function.
x y
4 17
5 19
Explain in words how you determined the equation.
Click here to see answer by stanbon(75887)

Question 761562: if x/3=y/5=z/7 then (z2-x2+y2)/2y2=
Click here to see answer by ramkikk66(644)

Question 761841: At the beginning of the party there are 24 cups of liquid refreshment in the
punch bowl. Every hour, 3 cups are used. Write an equation for the
amount of liquid in the bowl per hour starting at time zero when the party
begins.
Click here to see answer by ramkikk66(644)

Question 761894: express y in terms of x in the equation -3x+5y-11=0
Find the point where the line represented by the equation -3x+5y-11=0 cuts the y-axis.Hence check whether the point (3,4) is on the given line.
Click here to see answer by ramkikk66(644)

Question 762149: express the following equation in slope-inteercept form:
8x+10y=30
Click here to see answer by Cromlix(4381)

Question 762158: if a point on a line is known,but no other points are, what else is needed in order to create the equation of a line?
Click here to see answer by Cromlix(4381)

Question 762168: Trying to figure out:
through (6,-1) with m = 3/4
the guide says the answer is:
y = 3/4x - 11/2
I can't figure out how they came to this answer, thank you, tyson
Click here to see answer by Cromlix(4381)

Question 762215: Consider the line 7x=4y=9 .
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Click here to see answer by Cromlix(4381)

Question 762253: Which choice is the equation of a line that passes through the point (0, �15) and is parallel to the line represented by this equation?
Click here to see answer by jim_thompson5910(35256)

Question 762255: Find y if the line through (4, 7) and (9, y) has a slope of 6.
I dont get this.
Click here to see answer by solver91311(24713)

Question 762246: 2x+2y=-6
3x-2y=11
Click here to see answer by Cromlix(4381)

Question 762160: Solve the inequality and give the solution in interval notation --- 7 <_ 3x + 1 _< 19. Can you show me how to do this problem. I am having trouble.
Click here to see answer by lwsshak3(11628)

Question 762283: -2(x-6)+ 5x=10
Click here to see answer by jim_thompson5910(35256)

Question 762282: What happens to the graph of the line y = 2x - 5 when the equation is changed to y = 5x + 6?
Click here to see answer by josmiceli(19441)

Question 762295: find the y-intercept and the x-intercept for the equation.
-8x+y=10
Click here to see answer by jim_thompson5910(35256)

Question 762297: use the intercepts to graph the equation.
2x+5y=10
Click here to see answer by jim_thompson5910(35256)

Question 751042: 3(x-3)+6=3x+3x- -12
Click here to see answer by tommyt3rd(5050)

Question 762400: how do you find a and b in y = ax^b
Click here to see answer by unlockmath(1688)

Question 762407: Due to higher leather costs, the price of a $300 designer coat went up by 25%. A few months later, the coat went clearance sale at 25% off. what is the final price of the coat? did you get anything unexpected? why or why not?.. need help plz..
Click here to see answer by Stitch(470)

Question 762434: Create a relationship ( an equation) connecting the price of the item ( which is 134.95) (use x) a theoretical discount (use 10%) the sales tax (use 5%) and the final cost (use y) with the discount factored in .
Click here to see answer by solver91311(24713)

Question 762445: solve the systems of equations using graphs.
[a].2x+3y=-1
[b].3x+4y=0
Click here to see answer by MathLover1(20849)

Question 762339: hello- which set of points are on the line y=2x-1?
Click here to see answer by rothauserc(4718)

Question 762486: Problems 5 and 6: Endpoint A and midpoint M of are given. Find endpoint B.
5. A(1,2) and M(5,8). Answer: B(9,14). Show all the solution steps in detail, using the example as a model.
6. A(-2,-1) and M(0,0).

how do I figure it out?
Click here to see answer by stanbon(75887)

Question 762661: why -1*-1=1
Click here to see answer by Stitch(470)

Question 762661: why -1*-1=1
Click here to see answer by Edwin McCravy(20055)

Question 762683: what are the steps to take to write an equation in slope intercept form and graph if the slope is 2/3 and the y intercept is -4
Click here to see answer by solver91311(24713)

Question 762689: EASY PROBLEM
Two rectangles have the same area of 120m2. the diffrence of thier length 5m and thier breadth is 4m find thier sides
SOLVE IT IN MANNER LIKE
LET ... BE X AND .... BE Y AND GIVE ME EQUATIONS PLEASE

Click here to see answer by solver91311(24713)

Question 762737: The slope of a line is 3/4. The line passes through the point (4,7). Where does the line intersect the y-axis?
Click here to see answer by stanbon(75887)

Question 762741: Two people decided to start a business of renting out a reception hall. It cost $19,200 to start up this business. They earn $1200 for each event they rent their hall to.
Write the linear function that would be used to determine how many rentals they would
need to book in order to break even on their investment.

A. y = 19200x - 1200

B. y = 1200x - 19200

C. y = -1200x - 19200

D. y = 1200x + 19200
Click here to see answer by stanbon(75887)

Question 762736: Tony's mother's age is 7 years more than 3 times Tony's age.
Tony's age = x years.
Tony's mother's age = y years.

Click here to see answer by stanbon(75887)

Question 762742: Find the equation of the line that passes through the points (-2, 3) and (1, -6).

A. y = -9x + 3
B. y = -3x - 3

C. y = -3x + 3

D. y = -3x + 9

2.
Find the equation of the horizontal line that passes through the point (-2.5, -6.3).

A. y = -2.5

B. y = -6.3x

C. y = -6.3

D. y = 0

Click here to see answer by jim_thompson5910(35256)

Question 762772: Find the slope-intercept equation of the line with the following properties:
Parallel to the line x=4; containing the point (-7,7).

Thanks so much,
Natasha

Click here to see answer by Alan3354(69443)

Question 762891: a line has equation y=3x+7 and passes through the point(h,h+15).calculate the value of h?
Click here to see answer by sachi(548)

Question 762891: a line has equation y=3x+7 and passes through the point(h,h+15).calculate the value of h?
Click here to see answer by Cromlix(4381)

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