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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 445698: Graph the equation and tell whether it is linear
X=2
See, i don't understand how to graph a problem with X=2
Click here to see answer by benni1013(197)

Question 445782: Given two points through which a line passes, write the equation of each line in slope-intercept form.
(4,0) and (2,-5)
Click here to see answer by rfer(12654)

Question 445782: Given two points through which a line passes, write the equation of each line in slope-intercept form.
(4,0) and (2,-5)
Click here to see answer by nerdybill(6951)

Question 445782: Given two points through which a line passes, write the equation of each line in slope-intercept form.
(4,0) and (2,-5)
Click here to see answer by josmiceli(9664)

Question 445846: Tomorrow I have a test on slope intercept form, and solving system of equation. For slope intercept form, I know the formula is y=mx+b, and that m is slope and b is y intercept. I just don't understand how to graph it. An example is: Slope= -2, Y intercept= 1. The equation I came up with is Y= -2x+1. What number do I use for x, and how would I graph it.
For solving system of equations, I don't understand how to graph it either. For example: Y=-x and Y= x+2. How would you be able to put that on a graph.
I'm really sorry for how long that is, but it's super confusing for me. I had an A in math until this, and now I have a C. I'm hoping if I make a good grade on this test it will bring my grade up before final report cards. Thanks so much :)
Click here to see answer by stanbon(57282)

Question 445958: I am having trouble with Graphs and Linear Equations. Please help me solve this problem x+4y=8 and tell me how to find the two points to be able to graph it.
Click here to see answer by ewatrrr(10682)

Question 445955: Find an equation of the line having the given slope and containing the given point.
m=-2,(3,9)
The equation of the line is Y=_______

thank you.

Click here to see answer by ewatrrr(10682)

Question 445780: Given two points through which a line passes, write the equation of each line in slope-intercept form.
(2,7) and (5,3)
Click here to see answer by ewatrrr(10682)

Question 445954: Find the slope of the line containing the pair of points.
(5,7) and (8,1)

thank you
Click here to see answer by ewatrrr(10682)

Question 445777: Given two points through which a line passes, write the equation of each line in slope-intercept form
(-4,3) and (-2,1)
Click here to see answer by ewatrrr(10682)

Question 445989: What does the linear equation graph look like for y=-6x?
Click here to see answer by Alan3354(30993)

Question 446042: Please help me solve this linear equation by finding the slope and y-intercept and show me step by step how: -3x+y=5
Click here to see answer by stanbon(57282)

Question 446116: If an object is tossed into the air the path of this object is represented by the equation at²+bt+c=h where h is the height after t seconds, a is the acceleration due to gravity, b is the initial velocity, and c is the initial height.
Click here to see answer by richard1234(5390)

Question 446127: find the slope, if it exists, of the line containg the pair of points (2,6) and (8,-3)
Click here to see answer by rfer(12654)

Question 446061: determine(-3/10,-2)is a solution of 10x-9y=15
Click here to see answer by rfer(12654)

Question 446128: give y-intercept and slope equation (-2,6) and (-9,1)
Click here to see answer by mananth(12270)

Question 446224: Passing through point (3,7)and
Click here to see answer by rwm(914)

Question 446231: Find the slope-intercept equation of : slope 3/4; y-intercept 0,-35
Click here to see answer by ewatrrr(10682)

Question 446228: Passing through the point (2,8) and parallel to the line equation 3x+2y=13
Determine the equation of the line
Click here to see answer by ewatrrr(10682)

Question 446222: Passing through point (3,7)and parallel to the line with equation 5x+3y=12
Click here to see answer by ewatrrr(10682)

Question 446232: Determine the equation of the line
Passing through (5,8)and perpendicular to the line with the equation 5x-2y=10
Click here to see answer by ewatrrr(10682)

Question 446238: Determine the equation of the line in each of the following cases
a. Passing through the point(4,9)and perpendicular to the line 4x+7y=12
b. Passing through the point(7,3)and perpendicular to the line 7x+5y=16
Click here to see answer by ewatrrr(10682)

Question 446122: If an object is tossed into the air the path of this object is represented by the equation at²+bt+c=h where h is the height after t seconds, a is the acceleration due to gravity, b is the initial velocity, and c is the initial height.
a.A rocket is thrust vertically upward from the top of a tower 80 feet tall, with an initial velocity of 64 ft/s, (the acceleration due to gravity is -16ft/sec). Write the quadratic equation representing this scenario when h is 0.
b.Find the roots (solutions) for this quadratic equation, solving by factoring.
c.How high will the rocket be after 3 seconds?
d.How long will it take for the rocket to hit the ground?
How long will it take for the rocket to hit the ground?
Given the graph of the equation, identify and appropriately label, the vertex, solutions or roots, all intercepts, and axis of symmetry.

Given the graph of the equation, identify and appropriately label, the vertex, solutions or roots, all intercepts, and axis of symmetry.

Click here to see answer by ankor@dixie-net.com(15645)

Question 446337: Find an equation of the line having the given slope and containing the given plot. m=2,(5,7)The equation of the line is y=?
Click here to see answer by stanbon(57282)

Question 446342: Determine whether the graphs of the equations are perpendicular.
7x-6y=5
7y-6x=6
Are the graphs of the given equations perpendicular
yes or no. Show your work.
Click here to see answer by stanbon(57282)

Question 446347: Find the slope, if it exists, of the line containing the pair of points.
(-12,-17), and (-19,-20)
Answer A: the slope is ? (type an integer or a simplified fraction).
or
B: The slope is undefined.
Click here to see answer by stanbon(57282)

Question 446345: Write an equationof the line containing the given point and parallel to the given line.
(7,-8), 9x-4y=7
The equation of the line is y=?
type answer in the form y=mx+b using integers are fractions
Click here to see answer by MathLover1(6625)

Question 446352: Given the function g(w)=2w+2 Find each of the following:
g(4)=
g(-1)=
g(6.9)=
Click here to see answer by MathLover1(6625)

Question 446366: Determine whether the graphs of the pair of lines are parallel.
x+9=y
y-x=-5
Answer:
The slope of line x+9=y is ? or is it undefined ?
The slope of line y-x=-5 is ? or is it undefined ?
Are the graphs of the given equations parallel?
Click here to see answer by mananth(12270)

Question 446365: Find the function value.

f(x)=x to the 3rd power
f(3)=
Click here to see answer by richard1234(5390)

Question 446384: (3,8) and (9,12)
Determine in each case the gradient and equation of the line joining the two points.
Determine the co-ordinates for X intercept and y intercept for each of the lines

Click here to see answer by mananth(12270)

Question 446391: Determine in each the gradient and equation of the line joining the two points
Determine the co-ordinates for the X- intercept and Y - intercept for each of the lines
(-3,4) and (9, 12)
Click here to see answer by lwsshak3(6490)

Question 446423: find an equation in standard form of the line passing through the points(4,5) and (0,0). Show steps
Click here to see answer by rwm(914)

Question 446401: solve using the elimation method please show work
2x-6y-2
-8x+6y=26
Click here to see answer by rwm(914)

Question 446448: (-3,4)and (9,12)
Determine the co-ordinates X intercept and y intercept
Click here to see answer by mananth(12270)

Question 446539: 3m + n = b5
m - 2n = 4
Click here to see answer by mohammadrezai(14)

Question 446565: 2zx^2y=18 where x=1, z=y
please help me solve this equation
Click here to see answer by sudhanshu_kmr(1152)

Question 446617: passing through (5,2) with slope m=0
I wasn't sure how to use the 0
My answer was y=0+2
Click here to see answer by sudhanshu_kmr(1152)

Question 446617: passing through (5,2) with slope m=0
I wasn't sure how to use the 0
My answer was y=0+2
Click here to see answer by lwsshak3(6490)

Question 446625: 2. Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was $1.26, and in January 2006, the price of regular unleaded gasoline was $2.31 (“Consumer price index,” 2006). Use the coordinates (1997, 1.26) and (2006, 2.31) to find the slope, or rate of change, between the two points. Describe how you arrived at your answer.
Click here to see answer by stanbon(57282)

Question 446636: Find the intercepts and then use them to graph the equation.
y=-3-3x
Click here to see answer by rfer(12654)

Question 446644: Find the slope-intercept equation of the line that has the given characteristics.
Slope 9 and y-intercept (0,4).
The slope-intercept equation is y= ?
Click here to see answer by rfer(12654)

Question 446677: The fax mailer bought a fax machine for $600. The fax machine depreciates at a rate of $20.a month.
Find a function F that can be used to determine the value of the fax machine t months after purchase.
Complete the model and graph. F(t)= ?
Click here to see answer by stanbon(57282)

Question 446679: Find the slope and the y-intercept.
10 - 1/4y-3x
The slope is ?
The y-intercept is (0,?)
Click here to see answer by stanbon(57282)

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