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

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Question 581551: 5/8x-6y=2 I need y-intercept and x- intercept
Click here to see answer by dfrazzetto(283)

Question 581560: f=2/9x + 3/2. f=1. The equation would be than be 1=2/9x +3/2. Should I flip the fractions around so it would than be 9/2 + 3/2? I'm a little Lost.
Click here to see answer by josmiceli(19441)

Question 581572: find an equation of the line through (8,-4) and parallel to 8x+5y=2
Click here to see answer by josmiceli(19441)

Question 581605: the example problem is written as: Use the slope-intercept to graph the equation:
4x + y = 1
rewritten as y = -4x + 1
I understand the rearranging of everything, but there is no explanation to why 4x became -4x.
Thank you in advance for your assistance

Click here to see answer by stanbon(75887)

Question 581640: g=3h -2. Where g=4, and the 2 is negative.
Click here to see answer by jim_thompson5910(35256)

Question 581641: c=100D-7 c=50
Click here to see answer by jim_thompson5910(35256)

Question 581667: find the slope of a line containing a given pair of points (-5,-1) and (2,-3)
Click here to see answer by jim_thompson5910(35256)

Question 581669: find the slope of the line containing these two points (5,-2) and ( -4,-2)
Click here to see answer by jim_thompson5910(35256)

Question 581672: find the slope of the equation y=13 if the slope is undefined state this
Click here to see answer by algebrahouse.com(1659)

Question 581674: find the slope of the equation given if the slope is undefined state this x=-7
Click here to see answer by jim_thompson5910(35256)

Question 581675: find the slope or grade of the treadmill when the height is 0.4 ft and lenght is 5 ft
Click here to see answer by jim_thompson5910(35256)

Question 581742: Find an equation of the line that passes through the origin and is parallel to the graph of the function below. Write the equation in slope-intercept form.
Y= -15/2x -7
Click here to see answer by lwsshak3(11628)

Question 581898: a freight train travels 50 miles per hour. how do I write a linear function that describes the distance the train travels over time ?
Click here to see answer by Alan3354(69443)

Question 581904: Given the equation y=x+4 find the slope and the x-intercept
Click here to see answer by jim_thompson5910(35256)

Question 582012: My assignment was to collect data on 1 cup of broccoli and 1 cup of corn. The amount of calcium in one serving of broccoli is 62.4 mg and 1 mg of iron; in corn there is 5.4 mg of calcium and .6 mg of iron. The RDV for calcium a day is 1000 mg and for iron it is 18 mg. I need to construct and solve a linear system of two equations that would give me the amount of each food that would give me the full recommended values of calcium and iron. Here is the set up for calcium and I ended up with a negative amount:
x + y = 1000
62.4x + 5.4y = 1000
to solve for x x = -y + 1000
62.4(-y + 1000) + 5.4y = 1000
-62.4y + 62400 + 5.4y = 1000
- 62400 = -62400
-62.4y + 5.4y = 61400
-57y = - 61400
y = 1077
x + 1077 = 1000
- 1077 = -1077
x = -77
Can you tell me where I am going wrong?
Click here to see answer by ankor@dixie-net.com(22740)

Question 582247: How do I use an equation in point slope form (y + 5 = -1/2(x - 4)

Click here to see answer by KMST(5347)

Question 582390: for each pair of lines given below, find out if they are parallel, perpendicular, or neither:
a) 5x + 2y = 6 and 3x = 2y - 12
Click here to see answer by josmiceli(19441)

Question 582392: Please help me solve this equation:
Equation of line passing through (-7,-9) and perpendicular to 8x-9y+2=0
What I've tried: y=-8/9x+2/9 PL: y=9/8x+b EQUALS -9=9/8(-7)+b ???
Help please.
Click here to see answer by josmiceli(19441)

Question 582345: Find the equation of the line that contains the point (4,-2). and has slope 3/4. I started with using the formula y=mx+b. I set it up as -2=3/4 (4)+b but I can't finish it from here.
Click here to see answer by ankor@dixie-net.com(22740)

Question 582563: Find the slope of the line that passes through the given pair of points:
(6,3)and (5,8)
Click here to see answer by jim_thompson5910(35256)

Question 582628: find the equation of a line that has a slope of -2 and a y-intercept of 3.
Click here to see answer by jim_thompson5910(35256)

Question 582639: Find an equation of the line that passes through the point and has the indicated slope m.

(5, −2); m = −1
Click here to see answer by jim_thompson5910(35256)

Question 582687: Find the slope of the line that passes through the given pair of points.
(−3, −3) and (5, −5)
Click here to see answer by jim_thompson5910(35256)

Question 582690: Find an equation of the vertical line that passes through
(x, y) = (−8, 1).
Click here to see answer by eversteen(27)

Question 582690: Find an equation of the vertical line that passes through
(x, y) = (−8, 1).
Click here to see answer by mananth(16949)

Question 582708: Write the equation in the slope-intercept form.
7x + 4y − 16 = 0

Find the slope of the corresponding line.

Find the y-intercept of the corresponding line.

(x, y) =
Click here to see answer by mananth(16949)

Question 582694: Find an equation of the line that passes through the point (2, 3) and is perpendicular to the line
4x + 7y − 2 = 0
Click here to see answer by mananth(16949)

Question 582647: Write the equation in the slope-intercept form.
7x + 4y − 16 = 0

Find the slope of the corresponding line.

Find the y-intercept of the corresponding line.

(x, y) =
Click here to see answer by Edwin McCravy(20081)

Question 582736: Find the point of intersection of the pair of straight lines.

y= −8x − 9
−y= 9x + 7

Click here to see answer by mananth(16949)

Question 582845: Find the slope of the line through the given points.
1.(5,2),(7,10)
2.(-6,0),(0,-3)
3.(-5,-4),(-2,-9)
Click here to see answer by mananth(16949)

Question 583047: system of liner equations and inequalities.

Use the substitution method to solve the linear system given. Express
the answer as an ordered pair of the form (x,y)
y = x + 2
3x + 2y = 9

Click here to see answer by solver91311(24713)

Question 583051: ) Give the values of m and c for each straight line equation
a) y = 2x + 3 b) y = 4x � 2 c) y = 2x � 5
a) y = 1/2x � 8 e) 3y = 6x � 9 f) 1/2y = 2x + 3

Click here to see answer by solver91311(24713)

Question 583071: I keep getting stuck on the 3rd step of these types of problems. Can you help me figure this out correctly.
1/7x + 1/2= 6/7x + 3/7
Thank you
Click here to see answer by JBarnum(2146)

Question 583113: Could some one help me solve this equation please 2x-3y=1
3x+4y=10
Click here to see answer by JBarnum(2146)

Question 583138: Could someone help me graph this equation y=3x Y=|x|+1
Click here to see answer by solver91311(24713)

Question 583142: Find the slope of the line that passes through the points (0,2) and (6,7).
Click here to see answer by nyc_function(2741)

Question 583176: solve each system by the elimination method. Check each solution

3x-y=-12
x+y=4

2x+y=-15
-x-y=10

5x-y=5
-5x+2y=0

x+y=3
-3x+2y=-19
Click here to see answer by spongetatle(6)

Question 583259: i need help but its writing equations parallel or perpendicular to a line.

give the standard form of the equation of the line that is perpendicular to 4x+8y=1 and contains (-5,4)
Click here to see answer by computergeek008(7)

Question 583360: how to solve equations using substitution
y=.75x
3x-4y=0
Click here to see answer by dfrazzetto(283)

Question 583466: how to write equation forline passing through (-1,20) perpendicular to graph 4x+20y=15
Click here to see answer by mananth(16949)

Question 583480: Could someone help me graph y=x^2-4
Click here to see answer by Edwin McCravy(20081)

Question 583508: Write the slope-intercept equation for the line that passes through (-2, 3) and is perpendicular to 2x � 9y = -1
Click here to see answer by mananth(16949)

Question 583497: Could someone help me solve this equation 5-3/4x=2/3
Click here to see answer by Maths68(1474)

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