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

Tutors Answer Your Questions about Graphs (FREE)

Question 172220: In a cubic graph, how do I find the coordinates of the turning points.
Eg, xcubed - 3xsquared - 4x + 12. Can I use differentiation?
Click here to see answer by Alan3354(30993)

Question 172699: y=-2x+4
Click here to see answer by checkley77(12569)

Question 172707: 5x+2y=18
Click here to see answer by kristi2(1)

Question 172711: find the x-intecept of the line 5x-y=-5

Click here to see answer by Mathtut(3670)

Question 172779: is log(ab)=log(a).log(b)a true or false stament when using 12 for a and 14 for b?
Click here to see answer by vleith(2825)

Question 172809: solve by graphing
x-y=1
x+y=-1
Click here to see answer by jim_thompson5910(28536)

Question 172739: In 2004, German driver hrfj won the U.S. race. His speed was approx. 113.523 miles per hour write a direct variation equation for the distance D that hrfj drove in H hours at that speed

Click here to see answer by Mathtut(3670)

Question 172871: how do i know if the value is a solution, i need to provide a value that is not a solution. If the value is not a solution, i need to provide a value that is a solution. how do i do this for -2< x <4?

Click here to see answer by Mathtut(3670)

Question 172886: Find the slope of the line passing through points (-10,4) and (-4,-1).
Click here to see answer by colliefan(239)

Question 172886: Find the slope of the line passing through points (-10,4) and (-4,-1).
Click here to see answer by jim_thompson5910(28536)

Question 172917: The sum of number is 12. If two times the greater number is substracted from 5 times the lesser number. The result is 25 what is the product of the two original numbes if the greater one is doubled and the lesser one is cut in half?
Click here to see answer by ankor@dixie-net.com(15645)

Question 172948: Find the distance between the points (2,3) and (-5,-1). Find the midpoint of the line segment joining the same two points.

Click here to see answer by checkley77(12569)

Question 173010: Ariyone claims that 3,6 is the point of intersection of the lines y= 4x-2 and y=1/2x+5. is he correct. How do you know?
Click here to see answer by scott8148(6628)

Question 173010: Ariyone claims that 3,6 is the point of intersection of the lines y= 4x-2 and y=1/2x+5. is he correct. How do you know?
Click here to see answer by nerdybill(6951)

Question 173010: Ariyone claims that 3,6 is the point of intersection of the lines y= 4x-2 and y=1/2x+5. is he correct. How do you know?
Click here to see answer by Alan3354(30993)

Question 173011: Solve systems of equation by graphing, then classify the system
9x-5y=-25
5y-9x=25
Click here to see answer by Alan3354(30993)

Question 173112: solve:17j+22=-23+2j
Click here to see answer by stanbon(57282)

Question 173112: solve:17j+22=-23+2j
Click here to see answer by jim_thompson5910(28536)

Question 173117: solve:17j+22=-23+2j
Click here to see answer by jim_thompson5910(28536)

Question 173118: solve:18-4y=-3(2-y)
Click here to see answer by jim_thompson5910(28536)

Question 173131: Graph f(x) = log3x
Click here to see answer by jim_thompson5910(28536)

Question 173133: Hello Jim,
f(x)= (1/5)^x help please I have to graph this???
Click here to see answer by jim_thompson5910(28536)

Question 173186: Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x - 8y = -18
32x + 12y = -18
Click here to see answer by Mathtut(3670)

Question 173186: Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x - 8y = -18
32x + 12y = -18
Click here to see answer by Alan3354(30993)

Question 173237: I've been working on my homework and I have it all finished except for two graphing problems. I was wondering how to plot the graphs of the following functions:
f(x)=(1/5)^x
f(x)=4^x - 3
f(x)=7^x
Click here to see answer by jim_thompson5910(28536)

Question 173227: how does m turn in to k
Click here to see answer by Mathtut(3670)

Question 173213: What is the vertex of the graph of y=2(x-3)(x+1)

What is the vertex of the graph of y=2x²+8x-3
Click here to see answer by Mathtut(3670)

Question 173206: Is 8 a solution of the compound inequality 3x-2<7 or -2x-3<-15
Click here to see answer by Mathtut(3670)

Question 173292: Carlotta subcribes to HotBurn music service. She can download no more than 14 song files per week. She has already downloaded 10 song files this week. Write, solve, and graph an inequality to show how many more songs Carlotta can download.
Click here to see answer by Mathtut(3670)

Question 173321: Graph the inequality.
y ≤ -2
Click here to see answer by Mathtut(3670)

Question 173334: I could really use some help graphing these two functions:
f(x)=7^x
f(x)= log3x
Click here to see answer by jim_thompson5910(28536)

Question 173358: Write the equation of the line that passes through point (-6,-2) with a slope of 0.
Click here to see answer by stanbon(57282)

Question 173358: Write the equation of the line that passes through point (-6,-2) with a slope of 0.
Click here to see answer by jim_thompson5910(28536)

Question 173189: Graph the linear inequality
x + 5y ≥ -1
Click here to see answer by jojo14344(1512)

Question 173503: The slope of the line through the points P(2,3)and Q(5,-1) is ______ .
Click here to see answer by Mathtut(3670)

Question 173503: The slope of the line through the points P(2,3)and Q(5,-1) is ______ .
Click here to see answer by solver91311(16872)

Question 173503: The slope of the line through the points P(2,3)and Q(5,-1) is ______ .
Click here to see answer by Alan3354(30993)

Question 173506: The equation of the line with slope m= -2 passing through the point (-2,4) is _________ .
Click here to see answer by KnightOwlTutor(293)

Question 173506: The equation of the line with slope m= -2 passing through the point (-2,4) is _________ .
Click here to see answer by Mathtut(3670)

Question 173510: If the slope of a line is m= 4, then the slope of every line perpendicular to it is ________ .
Click here to see answer by KnightOwlTutor(293)

Question 173513: The equation of the line parallel to the line whose equation is 2x+y=0 and passing through the point P(1,-3) is ________ .
Click here to see answer by Mathtut(3670)

Question 173513: The equation of the line parallel to the line whose equation is 2x+y=0 and passing through the point P(1,-3) is ________ .
Click here to see answer by Alan3354(30993)

Question 173524: What are three solutions of 5x+7y=19?
Click here to see answer by Mathtut(3670)

Question 173546: Which two equations represent parallel lines??
a. y = 9x + 6
b. y = 4/9x + 1
c. y = -9/4x - 4
d. y = 9x - 1

Click here to see answer by user_dude2008(1861)

Question 173590: how do you find the slope of the line that passes through points
Click here to see answer by Mathtut(3670)

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