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

Tutors Answer Your Questions about Graphs (FREE)

Question 60544: Find the slope and y-intercept of the line
2x - 3y =6
Click here to see answer by tutorcecilia(2152)

Question 60625: please help!!!
Suppose y varies inversely as x and y = 5 when x = 20. Find x when y = 2
Click here to see answer by josmiceli(9819)

Question 60681: Find the equation of the line that has a slope of -4 and passes through the point (2,3)

Click here to see answer by checkley71(8403)

Question 60679: Find the slope of the line connecting (3, - 4) and (-5, 2)

Click here to see answer by checkley71(8403)

Question 60699: Solve and Graph the equation: y=x+3
Click here to see answer by checkley71(8403)

Question 60789: Pie Graph
Second day air freight 40%
Truck 45%
Next day air freight 15%
If the company shipped a total of 550 items last month, how many were shipped using second-day air freight?

Click here to see answer by checkley71(8403)

Question 60780: Find the slope of the line through the given points.
(2,1) (2, 7)
Click here to see answer by checkley71(8403)

Question 60828: When graphing a line that has slope 2/3 and passes through the point (1, -4, ehich of the following is a second point on the line?
A) (3,-1) B) (4-2) C) (-1,1) D) (3,8) E) (2,3)
Click here to see answer by checkley71(8403)

Question 60781: Find the constant of variation k.
m varies directly with n; m = 144 when n = 8.
Click here to see answer by jai_kos(139)

Question 60778: Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)
Also, I am unable to load "equation editor" on my computer for some reason so how would I show the qraph on a word document?
Click here to see answer by checkley71(8403)

Question 61049: Determine the equattion of each line. write teh answer in standard form using only intergers as the coefficients.
The line through (-2,4) that is perpendicular to the x-axis
Click here to see answer by checkley71(8403)

Question 61070: Can you help me find the value of this problem, f(x)=4x+2, f(-4)
Click here to see answer by uma(370)

Question 61069: Can you help me find the value of this problem, f(x)=4x+2, f(-4)
Click here to see answer by oberobic(2304)

Question 61117: Graph using the intercept method: 5x – y = 5.
Click here to see answer by funmath(2925)

Question 61116: Graph y = –2x + 1
Click here to see answer by tutorcecilia(2152)

Question 61133: Find the zeros of the polynomial function and state the multiplicity of each. Graph the polynomial function. Factor first if the expression is not in factored form.
f(x)=3x squared (x-2)(x+1)
Click here to see answer by stanbon(57984)

Question 61149: Please help me solve the following :
solve the system of inequalities x > 2 and y < or equal to x + 3
if no solution write no solution
THANK YOU EVER SO MUCH!
Click here to see answer by jai_kos(139)

Question 61150: solve the equation 6(d+6)=4(d-6)+2d
Click here to see answer by jai_kos(139)

Question 61113: Graph the solution set of x ³ -9.

Click here to see answer by praseena(37)

Question 61115: Plot the point with coordinates (0, 2).
Click here to see answer by tutorcecilia(2152)

Question 61210: write and equation for the horizantle line that crosses (-7, 5)
Click here to see answer by josmiceli(9819)

Question 61185: please show me how to get this equation. write the equation of the line which passes through the point(2,1) and is parallelto the line with equation y=5/2x+6 Thank you.
Click here to see answer by checkley71(8403)

Question 61242: 1>x-3
Click here to see answer by DJ_Sammie(24)

Question 61314: Find the equation of the ellipse that has the four points as endpoints of the major and minor axes. (3,0), (-3,0), (0,5), (-5,0).
I tried to use the x^2/a^2 + y^2/b^2 = 1 but I got a lil confused as to which numbers to use for x,a,y,b
Click here to see answer by venugopalramana(3286)

Question 61339: Can you explain to me how to solve this system by graphing? The problem is 3x+2y=6 x-y=7
Click here to see answer by jai_kos(139)

Question 61341: Can someone explain how I am supposed to solve by substitution with the problems x-y=5 x+2y=7 and 3b+2a=2 -2b+2a=8
Click here to see answer by jai_kos(139)

Question 61344: I have another word problem that I need some help with. A vending machine contains nickels and dimes worth $14.50. There are 95 more nickels than dimes. How many of each coin is there? Also there is another word problem that has to do with an airplain flying against the wind. An airplane flew for 4hr. with a 20-km/hr. tail wind. The return flight against the same wind took 5hr. Find the speed of the plane in still air.
Click here to see answer by stanbon(57984)

Question 61343: I need help with a couple of word problems. The first one is - Someone invests $50,000 for one year in two different banks with one account yeilding 5% and the other 11% intrest per year. A total of $4300 intrest was earned. Find the ammount deposited in each account. Also There is a problem about solutions of alcohol. Soulution A is 30% alcohol solution B is 75% alcohol. How much of each solution should be used to make 100L. of a solution that is 50% alcohol?
Click here to see answer by checkley71(8403)

Question 61373: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(2, -3) (2, 4)
Click here to see answer by stanbon(57984)

Question 61375: Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, -3) and is parallel to the line with equation
y = (2/3)x + 1
Click here to see answer by stanbon(57984)

Question 61377: In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost $10,000 to produce and that 300 items will cost $22,000 to produce. Find the equation that relates C and x.
Click here to see answer by stanbon(57984)

Question 61448: How do you find the slope of a line through (1,3) and (-2,5)
Also, how do you find the slope of a parallel line passing (1,5) and (-1,0)
Click here to see answer by drewman1010(1)

Question 61558: Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6.
Click here to see answer by tutorcecilia(2152)

Question 61342: I need an in depth step by step explaination on how to solve these problems by elimination. 7p+5q=2/8p-9q=17 and 2x+y=13/4x+2y=23
Click here to see answer by ankor@dixie-net.com(15747)

Question 61611: Could anyone show me how to solve and graph the following equation?
Find the slope and Y intercept by writing the equation in slope intercept form then graph.
3x+y=-2
Thanks for all your help!
Click here to see answer by DJ_Sammie(24)

Question 61610: Could someone please help me solve and graph the following equation?
I have tried to solve this on my own and cannot come up with the right answer? Please help
y=2x+6
Thanks alot!
Click here to see answer by josmiceli(9819)

Question 61616: This one has me stumped. Graph the line that has a slope of -3 and passes through the point P(0,3)
Click here to see answer by josmiceli(9819)

Question 61639: Please help me write an equation of the line that has the given x-intercept and slope:
x-intercept = 2, m = -2/3.
Click here to see answer by Earlsdon(6294)

Question 61615: This one has me stumped. Graph the line that has a slope of -3 and passes through the point P(0,3)
Click here to see answer by junior403(76)

Question 61700: Graph on a number line
x + 3 > -7
THANK YOU
Click here to see answer by tutorcecilia(2152)

Question 61708: How do I find the slope and y intercept?
X+3Y=-9
Click here to see answer by jai_kos(139)

Question 61699: Graph on a number line
x - 3 > not equal to 1
Click here to see answer by tutorcecilia(2152)

Question 61793: Write the equation of the line that passes through point (0, –5) with a slope of 9/7.
Click here to see answer by kayeith(17)

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