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

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Question 791163: If (5,b) is a point on the line y=2x+1 what is b?
Click here to see answer by solver91311(24713)

Question 791160: 6x+5y=11 in slope intercept form
Click here to see answer by waynest(281)

Question 791127: Suppose f is a linear function such that f(2)= 4 and f(5)= 19. What is slope m of f?
--------------------
I'm just learning how to find slope, have no idea how to find it with the numbers available here!
Click here to see answer by rothauserc(4718)

Question 791109: Graph the linear function: f(x) = 7x - 8
Click here to see answer by jim_thompson5910(35256)

Question 791283: 6x is greater than or equal to negative one third y.
i havent a clue on how to graph or solve this equation.
i think you flip the sign because you divide by a negative but im not exactly sure?
Click here to see answer by solver91311(24713)

Question 791325: Find the value of r so the line that passes through each pair of points has the given slope the the question is (4,-5),(r,3) m=8

Click here to see answer by solver91311(24713)

Question 791325: Find the value of r so the line that passes through each pair of points has the given slope the the question is (4,-5),(r,3) m=8

Click here to see answer by MathLover1(20849)

Question 791356: Given the equation and solution, find the missing coefficient.
8x − 6 = ? x − 7
Solution: x=6
Click here to see answer by wilft1(217)

Question 791744: 1.
Evaluate -5x - y, if x = -4 and y = 8.
A. -28
B. -12
C. 12
D. 28

Click here to see answer by solver91311(24713)

Question 791738: Graph the equation
y = 4x - 5
Click here to see answer by solver91311(24713)

Question 283769:
Click here to see answer by shevshevon(1)

Question 791834: Prompt: In 1950, a city was first established containing 32,000 people. In the year 2000, the size of the city was 149,000 people.
Question A: determine the rate of change in the population.
Question B: Predict the size of the city in the year 2010.
My issue is that I don't understand how to do this problem. I thought it was 'y' over 'x' and this is what I got so far: 32000 divided by 1950 and 149000 divided by 2000 but I don't think is the right way to solve the issue. Please help me.
Click here to see answer by wilft1(217)

Question 791904: x/7-1=x/9+5
Click here to see answer by waynest(281)

Question 791919: Find the equation of the straight line that passes through the point (-1,7/2) and has slope 1/2.
Click here to see answer by solver91311(24713)

Question 792005: can you explain how to solve this 3x-2y=12
Click here to see answer by Alan3354(69443)

Question 792035: Please solve in steps the following equation for my daughter's 7th grade Algebra.
ax=5a(a≠0)
I don't know what to do with the not equal sign, which lies between the "a" and "0" inside the parenthesis.
Thank you so much.
Renee Duong

Click here to see answer by stanbon(75887)

Question 792045: Write an equation in point-slope form for the line through the point
(-2,1) parallel to the line with equation: 3x - y = -9; and what are the coordinates needed to graph the two equations on one set of axes?

Click here to see answer by stanbon(75887)

Question 792344: My daughter is having trouble with this equation she has to find what y is to graph it. she is learning sloop intercept..and i have no idea how to help and help is appreciated.
y-50=-17/3(x-10)
Click here to see answer by Alan3354(69443)

Question 792342: If I have 2 equations:

y = 3x + 8

3x - y = -9

how do I determine the coordinates for plotting the two equations parallel to each other on a graph?
Click here to see answer by rfer(16322)

Question 792368: what is the slope of the line containing the pair of points (8,0) and (9,2)?
Click here to see answer by mananth(16946)

Question 792532: Which is the graph of the equation y = -4+ 1/3 x

Click here to see answer by Alan3354(69443)

Question 792543: When 2 less than a number n is increased by 70%, the result is 8.5. what is
the original number.
Click here to see answer by harpazo(655)

Question 792595: if y = 3x + 8 and passes through the point (-2,1) parallel to the equation
3x - y = -9, with slope=3, how to I determine the coordinates of both lines to plot them on a graph?

Click here to see answer by rfer(16322)

Question 792314: When the price (p) of commodity is $10 per unit, 750 units of it are sold. For every $1 increase in the unit price, the supply (q) increases by 100 units.
a. write the linear function q=f(p)
b. Find the supply when the price is $15 per unit
c. What is the price at which 1750 units can be supplied?
If you could please help me solve this I would really appreciate it. We have recently started working with the library of functions and stuff in class and I am having difficulties.
Click here to see answer by ankor@dixie-net.com(22740)

Question 792702: Use the elimination method to solve the system of equation
2x-y=16
3y=2x-24

I turned the last equation into 2x-3y=24, but after that I got lost when I added 2x + 2x = 4x and 16 + 24 = 40. I don't know what to do from there.
Click here to see answer by stanbon(75887)

Question 792713: A stone is projected vertically upwards and its height in meters after T seconds is given by h=50t-t^2. Find the time taken for the stone to first reach a height of 120meters.
I used the quadratic equation to find t but i didnt make it i got stuck when i used the cross method to find the factors, please help me...thankyou
Click here to see answer by stanbon(75887)

Question 792717: Write an equation in point-slope form for the line through the point
(-2,1) parallel to the line with equation: 3x - y = -9. What would the coordinates be to graph both of the lines on one set of axes?

Click here to see answer by stanbon(75887)

Question 792727: The equation of the line that goes through the point ( 13 ,37 ) and is parallel to the x-axis can be written in the form y = mx+b where m ---- and b is -----?

Click here to see answer by stanbon(75887)

Question 792814: Write an equation in point-slope form (y - y1 = m (x - x1) for the line through the point (-2,1) parallel to the line with equation: 3x - y = -9. What would the coordinates be to graph both of the lines on one set of axes?
Click here to see answer by Cromlix(4381)

Question 792833: Showing all work, determine whether the lines given by the equations below are parallel, perpendicular, or neither:
y = 2/3x - 6
6x + 4y = 5
Click here to see answer by unlockmath(1688)

Question 792859: Find the value of y for a given value of x, if y varies dirctly with x
If y = -252 when x = 84, what is y when x = 74?
Click here to see answer by stanbon(75887)

Question 792839: Showing all work, determine whether the lines given by the equations below are parallel, perpendicular, or neither:
y = 2/3x - 6
6x + 4y = 5

Click here to see answer by rfer(16322)

Question 792929: 13-(3x+4)=5(x+7)+x

Click here to see answer by psbhowmick(878)

Question 793093: The line 5x+ky=12 passes through the point (2,-1). Find the value of k.
I tried and i found the value of k is -2 but i'm not sure thats the right answer.
Click here to see answer by stanbon(75887)

Question 793080: Find the area of a triangle with the base 2 3/4 yards and height of 4/9 yards
Click here to see answer by rfer(16322)

Question 793174: Write the equation of a line passing through point (0, -4) with a slope of (-3/4).
Click here to see answer by mananth(16946)

Question 793179: Solve the following linear system using the substitution method and check your solutions.

3x+4y=-6
x-3y=-2
Click here to see answer by waynest(281)

Question 793233: find an equation of the line passing through each pair of points. Write the equation in the form Ax+By=C. Points are (3,2) and (5,6).
Click here to see answer by mananth(16946)

Question 793220: 2x - 7y = -21 What is the y-intercept of the equation above?
Click here to see answer by jim_thompson5910(35256)

Question 793241: What is y-4= 5/4(x+8)?
Click here to see answer by waynest(281)

Question 793248: Find an equation of the line containing the point (5,2) perpendicular to the line 3x-5y=10.
Click here to see answer by Cromlix(4381)

Question 793253: Anyone know how to solve 5/x + x/x-3 ? And can show me how they got the answer? Thank you!
Click here to see answer by Cromlix(4381)

Question 793332: what is the answer of 4x+y=6 and y=2x
Click here to see answer by Cromlix(4381)

Question 793328: Which of the following equations have the same solution? Explain each step in solving each equation using complete sentences. (10 points)
I.4x - 14 = 2x + 8
II. 3x - 21 = 12
III.
Click here to see answer by Cromlix(4381)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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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, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 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