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

Tutors Answer Your Questions about Graphs (FREE)

Question 1059715: How do I graph the linear equation 3x=0
Click here to see answer by Theo(13342)

Question 1059715: How do I graph the linear equation 3x=0
Click here to see answer by ikleyn(52780)

Question 1059768: Does x=5 and y=-2 have ordered pairs or no solution or infinitely many solutions
Click here to see answer by acw1213(28)

Question 1059796: The graph shown represents the number of bacteria in a dish after a certain number of minutes. It is a function in the form
f(x) = a � bx.
How many bacteria are in the dish after 9.5 minutes? (Round your answer to the nearest whole number.)
the points on the graph are (1,1) and (3,4).
Click here to see answer by Alan3354(69443)

Question 1059822: How do I graph the inequality y>-3x and plot it on a line
Click here to see answer by josgarithmetic(39617)

Question 1059825: How do I graph the inequality y>-3x and plot it on a line?
Click here to see answer by josgarithmetic(39617)

Question 1059825: How do I graph the inequality y>-3x and plot it on a line?
Click here to see answer by Fombitz(32388)

Question 1059841: A curve has the equation y=(x-3)^2/(x+1). By considering y for all real values of X, show that no point on the curve exists in the interval -16
Click here to see answer by josgarithmetic(39617)

Question 1059805: Are any of the following statements TRUE?
A.) Reference angles can be obtuse.
B.) Reference angles are always acute.
C.) Reference angles are between and degrees.
D.) Reference angles may be negative.
Thanks.
Click here to see answer by jim_thompson5910(35256)

Question 1059877: Construct a rational function that has a vertical asymptote at x=3 and a removable discontinuity at x=-2. Explain how you determined your answer
Thank you!
Click here to see answer by josgarithmetic(39617)

Question 1059872: List three points you might test to find the solution of (x + 3)(x - 5) < 0.
Click here to see answer by josgarithmetic(39617)

Question 1059934: Graph the line y=-2x-1
Click here to see answer by algebrahouse.com(1659)

Question 1059944: Find the area of the region enclosed by the graph of the equation $x^2 + y^2 = 4x + 6y+13$.
Thanks!
Click here to see answer by ikleyn(52780)

Question 1059981: Good day professor.
Please help me to solve this by linear inequality? In a graph...
y>x-1
Thank you so much in advance.
Click here to see answer by algebrahouse.com(1659)

Question 1060001: Hello, how do I solve this question. x + 2y = -4 step by step
Click here to see answer by acw1213(28)

Question 1060001: Hello, how do I solve this question. x + 2y = -4 step by step
Click here to see answer by hussamuddin(51)

Question 1060058: What is the slope and the y-intercept of y=-7x+12
Click here to see answer by rfer(16322)

Question 1060148: Find an equation of the circle that has center (-4,3) and passes through (-6,-4)
Click here to see answer by Cromlix(4381)

Question 1060166: Quadratic systems: How can I write a system of equations with one linear equation and one quadratic equation with a given point [example: (2, 4)] as a solution?
Click here to see answer by Alan3354(69443)

Question 1060124: The co ordinates of the end points of a line segment PQ are P(3,7) and Q(11,-6). Find the coordinates of the point R on the y-axis such that PR=QR
Click here to see answer by Fombitz(32388)

Question 1060302: Calculate the following areas. First draw a neat sketch indicating the required area. Also show the area element (triangle A)
1. The area enclosed by the x-axis and that part of the curve y=5x+6-x^2 for which y is positive.
2. The area enclosed by y=2 Sin 2x, the x-axis, x=0 and x=pi/2
3. The area enclosed by y=2e^2x, the x-axis, x=0 and x=2
Please assist!
Click here to see answer by Fombitz(32388)

Question 1060352: Graph y=3/4(X)+2
I really need help,
Click here to see answer by Fombitz(32388)

Question 1060347: Graph the equation.
9+5x=2x
Click here to see answer by Fombitz(32388)

Question 1060442: Not sure how to type them in but the bracket is suppose to connect both numbers in one bracket!
Solve the system with the addition method:
{12x+18y= 21
{4x+6y= 7

Enter your answers as integers or as reduced fraction(s) in the form A/B. If there is no solution, type "DNE" in each blank. If there are an infinite number of solutions, specify their form in the blanks in terms of x (eg. (x, 2x-3))

Click here to see answer by addingup(3677)

Question 1060444: Find the equation of the line with Slope = −12/7 passing through the point (28,-31). Write your answer in the form y=mx+b.
Write your answers as integers or as reduced fractions in the form A/B.
Click here to see answer by josgarithmetic(39617)

Question 1060440: Find an equation of the line that (a) has y-intercept of 10 and (b) is parallel to the line −4x+5y=12
Write your answer in the form y=mx+b

Click here to see answer by josgarithmetic(39617)

Question 1060443: The radiator in a car is filled with a solution of 70 per cent antifreeze and 30 per cent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 per cent antifreeze. If the capacity of the radiator is 3.4 liters, how much coolant (in liters) must be drained and replaced with pure water to reduce the antifreeze concentration to 50 per cent?
Not sure what category this question falls under so I have posted it here, because all my other questions were asked here.
Click here to see answer by josgarithmetic(39617)

Question 1060424: Graph the following function to find the x-intercepts. Y=-5x^2+2x+3
Click here to see answer by josgarithmetic(39617)

Question 1060424: Graph the following function to find the x-intercepts. Y=-5x^2+2x+3
Click here to see answer by MathTherapy(10552)

Question 1060526:
Click here to see answer by Alan3354(69443)

Question 1060441: Find the equation of the line with Slope = −127-127 passing through the point(28,-31). Write your answer in the form y=mx+b.

Click here to see answer by Alan3354(69443)

Question 1060682: Perform 45 degree rotation of a triangle about the origin

Click here to see answer by ikleyn(52780)

Question 1060879: Graph y= 2/7x
Thanks! Been stuck on it.
Click here to see answer by Alan3354(69443)

Question 1060941: Use the intermediate value theorem to determine whether the polynomial function has a zero in the given interval. f(x) = -2x^4 + 2x^2 + 4; [-2, -1]
a. f(-2) = 20 and f(-1) = 5; no
b. f(-2) = -20 and f(-1) = 4; yes
c. f(-2) = 20 and f(-1) = -4; yes
d. f(-2) = -20 and f(-1) = -4; no
Click here to see answer by ikleyn(52780)

Question 1061008: What is the solution to the system represented by 2x = y + 6 and 4x - 2y = 12?

Click here to see answer by josgarithmetic(39617)

Question 1061235: Write an equation in slope-intercept form that passes through the given point and is parallel to the graph of the given equation. (4,2) x = -3
I know how to solve it when it is an equation like y = x + b, just not when I'm only given x.
Click here to see answer by josmiceli(19441)

Question 1061251: Use the method of substitution to solve the system
x^2+y^2=23,
x+y=1
Click here to see answer by josgarithmetic(39617)

Question 1061268: When graphing inequalities and I come up with a number that does NOT have a slope how would I shade for the equation?
Click here to see answer by josgarithmetic(39617)

Question 1061290: Write an equation in slope intercept form that passes trough the point (1,-6) and is parallel to the equation x-2y=4. Then write an equation that passes trough the same point but is perpendicular to the same equation.
Click here to see answer by math_helper(2461)

Question 1061321: For the following system, use the second equation to make a substitution for x in the first equation.
3x + 2y = 7
x - y + 3 = 0
What is the resulting equation?
A.)3x - y - 3 + 2y = 7
B.)3(y - 3) + 2y = 7
C.)3y - 3 + 2y = 7
Click here to see answer by josgarithmetic(39617)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975