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

Tutors Answer Your Questions about Graphs (FREE)

Question 163059: WRITE THE EQUATION OF A LINE IN THE FORM Ax+By=C THROUGH THE POINT (-5,-3) AND PERPENDICULAR TO THE LINE y=- 2OVER3x+6
Click here to see answer by Fombitz(32388)

Question 163055: Solve by substitution:
2x+2y=2
3x-y=1
Click here to see answer by joecbaseball(37)

Question 163056: solve by elimination:
3x+5y=4
5x+2y=9
Click here to see answer by joecbaseball(37)

Question 163094: Determine the slope of the line. Graph shows it as y= (0,3) and x=(0,-5).
Find the slope of the line. m= ___
Click here to see answer by checkley77(12844)

Question 163098: Graph the equation and identify the y-intercept.
y+x= -10
The y-intercept is _____
Click here to see answer by joecbaseball(37)

Question 163098: Graph the equation and identify the y-intercept.
y+x= -10
The y-intercept is _____
Click here to see answer by checkley77(12844)

Question 163090: Graph the equation using the slope and the y-intercept.
y= 6/5x+7

Click here to see answer by checkley77(12844)

Question 163054: Solve by graphing:
2y+4x=6
3y+6x=9
Click here to see answer by checkley77(12844)

Question 163046: solve by graphing:
y=2x=1
y=x-3
Click here to see answer by checkley77(12844)

Question 163102: Use the intercepts to graph the equation.
x+3y=6
(graph is 10 to -10 by 2)
Click here to see answer by Fombitz(32388)

Question 163418: Can you please help with this math problem I really don't know where to begin?
Graph the solution set.
3x-2y<1
x+3y<6
Thank you for helping me.
Click here to see answer by elima(1433)

Question 163506: can somebody tell me if i'm right! i have to express my answer in slope-intercept form.
Perpendicular to the line 5y+2x=7 and containing the point (3,0).
i got y = 5/2x+6 for my answer is this correct?
Click here to see answer by Edwin McCravy(20054)

Question 163510: can somebody help me find an equation for this variatioN...
if W varies with A and inversely with I
Click here to see answer by ankor@dixie-net.com(22740)

Question 163535: can somebody help me solve this problem: if w varies directly with A and Inversely with I, if A = 4 when I=2 and w=2, what is the constant of variation, K?
this is what i tried... 2=k/2, so k is 4, is this the constant of variation?
Click here to see answer by ankor@dixie-net.com(22740)

Question 163518: can somebody help me solve this problem: if then find f(x+h)?
this is what i did...i plug in the f(x+h) in the f(x) function,
so , i got 3x+3h-2,but i'm not sure if this is the right answer,because 3x is raised to the 2nd power in the f(x)...please tell me if i'm wrong
Click here to see answer by Fombitz(32388)

Question 163619: The body mass index, I, can be used to determine an individual�s risk for heart disease. An index less than 25 indicates a low risk. The body mass index is given by the formula, or model,
I = 700W / H^2 where W = weight, in pounds, and H = height, in inches. Francis weighs 212 pounds and stand 73 inches tall. What is his approximate body mass index? Find an inequality describing all weights W that Francis can have and be in a low-risk category.
Francis� approximate body mass index is ___
(Round to the nearest whole number.)

Click here to see answer by stanbon(75887)

Question 163618: Describe what the graph of interval [-4,10] looks like
Click here to see answer by edjones(8007)

Question 163671: An escalator carries passengers a vertical distance of 40 ft. while traveling a horizontal distance of 90 ft. Find hte grade of the escalator
Click here to see answer by vleith(2983)

Question 163642: GRAPH THE FOLLOWING EQUATIONS; CALCULATE THE SLOPE, X-INTERCEPT, AND Y-INTERCEPT, AND LABEL THE INTERCEPTS ON THE GRAPH.
1. y = x + 3
2. y = -2x - 7
3. 2x + 3y = 9
Click here to see answer by KnightOwlTutor(293)

Question 163787: How can I find the slope of the line pasing through the points (6,7) and (2,-8).
Click here to see answer by nerdybill(7384)

Question 163845: Write algebraic expressions for the following unknown integers.
36. Three consecutive even integers

Click here to see answer by jojo14344(1513)

Question 163860: The length of a rectangle is 3 m longer than its width. If the perimeter of the rectangle is 38 m find its area
Click here to see answer by midwood_trail(310)

Question 163860: The length of a rectangle is 3 m longer than its width. If the perimeter of the rectangle is 38 m find its area
Click here to see answer by nerdybill(7384)

Question 163836: Graph the line with the given point and slope
The line through (-2,5) with slope -1
Click here to see answer by checkley77(12844)

Question 163835: Graft each line using its y-intercept and slope
y + 4x =8
Click here to see answer by checkley77(12844)

Question 163926: Please help me solve the following problem:
Write a slope-intercept equation for a line with slope 4 which passes through the point (1,7)

Click here to see answer by stanbon(75887)

Question 163935: Please help!
Determine whether the graph of y=|4x| is symmetric with respect to the x-axis, the y-axis, or the origin.

Click here to see answer by stanbon(75887)

Question 163948: 3. Plot the graph of the equations 10x - 4y = 3 and 5x - 2y = 6 and interpret the result.
Click here to see answer by stanbon(75887)

Question 163947: 2. Plot the graph of the equations 4x - 6y = 2 and 2x - 3y = 1 and interpret the result.
Click here to see answer by midwood_trail(310)

Question 163946: 1. Plot the graph of the equations 3x - 8y = 5 and 4x - 2y = 11 and interpret the result.
Click here to see answer by midwood_trail(310)

Question 163823: 2x-3y=6
Click here to see answer by elima(1433)

Question 163824: 3y-2x=3
Click here to see answer by elima(1433)

Question 163987: Find the vertex, the line of symmetry, and the maximum or minimum of f(x). Graph the function
f(x)=(1)/(5)(x+1)^2+9
Click here to see answer by stanbon(75887)

Question 164176: Im not sure if this problem should be under this topic. But any help would be great! :)

The function y= .03X^2 + 254.50 0 a) Determine the inverse of the function. What does each variable in the inverse function represent?
b) Use a graphing utility to graph the inverse function.
c) Determine the percent load interval if the exhaust temperature of the engine must not exceed 500F.
Thank You Again :)
Click here to see answer by stanbon(75887)

Question 164230: Graph the inequality on a plane.
5x + 6y < 30
(the < is supposed to be underlined.)
Click here to see answer by padmameesala(42)

Question 164231: Solve. Then graph.
t + 19 ≥ 8
The solution is {t t ≥ -11}
The graphing is what I do not understand.
There are 4 options to choose from.
A scale that starts at -11 and goes to the left, at -11 there is a ] sign
A scale that starts at -11 and goes to the right, at -11 there is a [ sign
A scale that starts at -11 and goes to the right, at -11 there is a ( sign
A scale that starts at -11 and goes to the left, at -11 there is a )
I have no idea which scale is correct. Please help.
Click here to see answer by padmameesala(42)

Question 164252: This is 1 question with a 2 Parts.
On a graph that has a system of equations of
8x - 7y = 49
-8x + 7y = -49
Is the system consistent or incosistent?
Are the equations dependent or independent?

Click here to see answer by jim_thompson5910(35256)

Question 164249: Write interval notation for the set {x -3 ≤ x ≤ 3}
Choose the correct interval
A) [-3,3]
B) [-3,3)
C) (-3,3]
D) (-3,3)
Click here to see answer by jim_thompson5910(35256)

Question 164235: This is 1 question with several parts.
Solve the system of equations by graphing. Then classify the system.
x + y = 10
x - y = 6
The solution is (8,2)
Is the system consistent or incosistent?
Are the equations dependent or independent?
Click here to see answer by jim_thompson5910(35256)

Question 164421: Mr.Calvillo wants to enclose a rectangular area for a garden space of a given square footage. The length of the plot will vary inversely as the width. If he decides on a width of 18 feet, the garden will be 30 feet long. How long will a 45 foot wide garden be?
Click here to see answer by Earlsdon(6294)

Question 164419: Find g(9) given that g(x)=2x+3.
Click here to see answer by Earlsdon(6294)

Question 164418: Find h(4) given that h(x)=x/2-7.
Click here to see answer by jojo14344(1513)

Question 164416: Assume that y varies directly as x. Find y when x = 54 if y = 1/4 when x = 3/2
Click here to see answer by jojo14344(1513)

Question 164448: Fine an equation of the line containing the two given points.
(1,16) and (-2,-16)
I got -16-16=-32 and -2-1=-3 so -32
-3
Click here to see answer by jim_thompson5910(35256)

Question 164447: Graph the line through (3,3), undefined slope
Click here to see answer by jim_thompson5910(35256)

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