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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 248027: how do use the slope and y intercept to graph the following equations, y=2x-3 and y=2/3x-4.
Click here to see answer by oberobic(2304)

Question 247911: I can't understand how to graph this, or were to put the points.
The problem is 6x + 3y = -12
Click here to see answer by ankor@dixie-net.com(15622)

Question 248082: how do you get equation with the given properties (parallel to the line x-2y+5=0; passing through (0,0)
Click here to see answer by richwmiller(9132)

Question 248115: What is the slope of the X & Y axis? My thought is the X axis is horizontal line so it is 0 and the Y axis is on the vertical line and it's slope is indefinite. Is this correct?
Click here to see answer by tutorcecilia(2152)

Question 248165: write the equation in slope-intercept form of the line that has a slope of 3 and conatains the point (4, 9)

Click here to see answer by vleith(2825)

Question 248172: Can someone help me with angles? The two angles are complementary. The sum of the measure of the first angle and 1/4 of the second angle is 75 degrees. Find the measures of the angles.
What is the measure of the smaller angle?
What is the measure of the other angle?
Can someone please explain this to me? any help is appreciated, Thanks

Click here to see answer by ankor@dixie-net.com(15622)

Question 248206: I am totally confused here this problem says solve by elimination
0.3x-0.2y=4
0.5x+0.5y=45/23
It says the solution must be in fraction form can someone help me please? Thanks
Click here to see answer by Fombitz(13828)

Question 248203: This problem say solve and use the set-builder notation to describe the complete solution
3y-1<8y-3
Can someone please explain this to me? Thank you
Click here to see answer by richwmiller(9132)

Question 248223: Man this one is a doozy it says, a cell phone company offers a contract for which the cost C, in dollars of t minutes of telephoning is given by C=0.25(t-600)+$61.95 where it is assumed t>600 minutes. What times will keep the cost between $110.45 and $134.70?
? minutes and ? minutes
Can someone please help? thanks so much
Click here to see answer by richwmiller(9132)

Question 248214: This says solve by the substitution method
5x+9y=-11
-5x+y=21
it says the solution is an ordered pair, I get substitution mixed up with elimination can someone expain how to get this solution by the substitution method? Thanks so much
Click here to see answer by scott8148(6628)

Question 247941: A line passes through (r,5) and (6,r). If the slope is five eights what is r equal to?
Click here to see answer by ankor@dixie-net.com(15622)

Question 248320: graph 6x-2y=18
Click here to see answer by richwmiller(9132)

Question 248340: I can't figure out how to solve these 2 equations can someone help please?
11045=0.25(I-600)+6195
13470=0.25(H-600)+6195
Can anyone please help thanks
Click here to see answer by solver91311(16868)

Question 248336: Can someone help me solve this by the elimination method
9x+9y=-45
3x+9y=-51
The solution is an ordered pair, thank you
Click here to see answer by Alan3354(30924)

Question 248385: how do I find the point slope?
Click here to see answer by richwmiller(9132)

Question 248383: how do I find the point slope?
Click here to see answer by checkley77(12569)

Question 248524: what is A=a+b+c/3 solve for b
Click here to see answer by richwmiller(9132)

Question 248518: dertermine if whether each equation is a linear if so write it in standard form
3x=5y
Click here to see answer by richwmiller(9132)

Question 248518: dertermine if whether each equation is a linear if so write it in standard form
3x=5y
Click here to see answer by oberobic(2304)

Question 248599: graph the equation.include all intercepts
3x-6y=12
Click here to see answer by College Student(505)

Question 249103: directions
find the rate of change for the sitution.
you run 7 miles in one hour and 21 miles in three hours?

Click here to see answer by stanbon(57203)

Question 249110: tell whether the lines for each equation is parallel prependicular or niether
y=-1/2x-11
16x-8y=-8
Click here to see answer by unlockmath(1599)

Question 249129: If a road rises 14 feet for every 200 feet of run, what is the percent grade( slope as percent)?
Click here to see answer by edjones(7569)

Question 249138: Problem goes as follows:
"Graph the line x=4"
the answer provided is as follows:
(4,-5)(4,-1)(4,7).
I do not understand how this answer was discovered. I am in dire need of your assistance. Any help is immensely appreciated! Thank you.
Click here to see answer by jim_thompson5910(28476)

Question 249105: are the graph of the lines in the pair parallel?explain
y=5x+6
-18+3y=-54
Click here to see answer by College Student(505)

Question 249131: The price of an item was $30 its first year,$66 in its 4th year, and it can be assumed that its price will continue to increase linearly. Write a simplified equation describing the relationship between cost and year. find the cost for the 7th year
Click here to see answer by checkley77(12569)

Question 249108: 1.7x-4y=4
x-4y=3
tell whether the line for each pair of equations are parallel,prependicular,or nither

Click here to see answer by College Student(505)

Question 249104: directions
are the graph of the line in the pair parallel?explain
y=1/6x+8
-2x+12y=-11

Click here to see answer by College Student(505)

Question 249114: write the equation of a line that is prependicular to the given line and that passes throught the given point.
4x-12y=2;(10,-1)
Click here to see answer by checkley77(12569)

Question 249411: Use a calculator to approximate the square root. Round to three decimal places.
- sqrt.0.00421
Click here to see answer by user_dude2008(1861)

Question 249412: How do you graph y=.5x-600 on a coordinate plane?
Click here to see answer by richwmiller(9132)

Question 249412: How do you graph y=.5x-600 on a coordinate plane?
Click here to see answer by College Student(505)

Question 249461: Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.
a = 1, b = 6

Click here to see answer by stanbon(57203)

Question 249474: Rationalize the denominator and simplify.

(49√14)/(21√3)

Click here to see answer by stanbon(57203)

Question 249498: Write th slope intercept form of an equation of the line that passes through the point (4,4) and has the slope m=5.
Click here to see answer by oberobic(2304)

Question 249501: Write an equation in slope-intercept form of the line that passes through (-6,1) and is parrallel to the graph of y=-5x+2
Click here to see answer by tutorcecilia(2152)

Question 249529: trying to find slope and y integer for this problem -3x -5y = -25 please help also need to know the parallel slope and perpendicular slope
Click here to see answer by oberobic(2304)

Question 249494: State wether the equation y=12x-6 is linear.
Click here to see answer by oberobic(2304)

Question 249493: Find the slope and the y-intercept of the line 2x-8y=4
Click here to see answer by unlockmath(1599)

Question 249489: State wether the equation y=12x-6 is linear?
Click here to see answer by Theo(3458)

Question 249612: Can someone help me please?
5/4x+1/8x=9/8+x
the solution is x=?
Im not very good at fractions they confuse me any help will be appreciated. Thanks
Click here to see answer by checkley77(12569)

Question 249615: Can you help me find the slope and y-intercept to
f(x)=-3x-2
The slope is ?
the y-intercept is(0,?)
any help is apprciated thanks
Click here to see answer by checkley77(12569)

Question 249626: This problen says evaluate a+b/7 for a=67 and b=3
a+b/7=? and simplify the answer
I am totally lost here please help. thanks
Click here to see answer by Alan3354(30924)

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