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

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Question 212795: slope of a tan line to a curve at P (3,3) is 4. Use the equation of this tangent to find its value for x=9.
The answer I got was p=81 , I know that the equation of the tangemt line is y=4x-9, but I am lost after that part.
but my choices are 27,31,29,22,32 or 24 as the right answer. so it can not be p=81
Click here to see answer by Alan3354(69443)

Question 212756: find the maximum and minimum values of f(x,y)=3x+y for the polygonal convex set determined by x>= 1, y>= 0, and x+0.5<= 2.
Click here to see answer by Fombitz(32388)

Question 212754: x-y=6
Click here to see answer by Fombitz(32388)

Question 211933: write the equation in the form y=mx+b
5x-y=7
Click here to see answer by drj(1380)

Question 212930: How do I find the equation of the line which passes through the points
(-3,2) and (3,-2)
Click here to see answer by jim_thompson5910(35256)

Question 213020: graph the equation and identify the y intercept
y= 3/2 x + 2
the y intercept is?
Click here to see answer by drj(1380)

Question 213017: find the slope if it exists
x+9y=18
m=
Click here to see answer by drj(1380)

Question 213035: determine whether the graphs of 2 lines are parrallel
Click here to see answer by Alan3354(69443)

Question 213065: find the slope and the Y intercept of the line write the fraction answer in the lowest terms
Y=-8/7x -10/3
Click here to see answer by Earlsdon(6294)

Question 213109: I am really confused about this problem and have no idea how to start it.
Here it is: The lengths of the sides of a triangle are consecutive odd integers. The perimeter is 195. Find the length of each side.
Click here to see answer by nerdybill(7384)

Question 213116: solve please 7x+4=x+16
Click here to see answer by therei(2)

Question 213156: I realize this is a very simple question but how do you know if an equation is linear or Non-linear ?
y=5x is this linear or Non-linear? and Why?
Click here to see answer by rfer(16322)

Question 213222: Find an equation of the line containing the givin pair of points?
(1/4,-1/2)and(3/4,3)
thank you
I kow the slope is 7 cause my study guide says so but how do you get that? And then finish the solution?
Click here to see answer by rfer(16322)

Question 211932: Solve for Y. Write the equation in the form y=mx+b. identify m and b.
5x-y=7
Click here to see answer by tsuffern(3)

Question 213281: Please help with the following questions: Find the slope of the line dtermined by the following equation. 7x - y = 63
2)Determine whether the line PQ is parallel or pendicular (or neither)to a line slope of -2.
P (3,4) Q (7,6)
3) Find the values. f(x) = x2 + 2
f(3) =
f(-3) =
Click here to see answer by Alan3354(69443)

Question 213420: how do i work out this problem?
m+4=9
Click here to see answer by shymeerab(21)

Question 213427: WHAT TYPE OF FORMULA AM I SUPPOSE TO USE IN ORDER TO FIND THE VALUE OF X 0R Y. THE DIRECTIONS SAY, "FIND THE VALUE OF X OR Y SO THAT THE LINE THROUGH THE PAIR OF POINTS HAS THE GIVEN SLOPE." I'M NOT SURE HOW TO DO THAT. THE GIVEN IS (-2,3) AND (4,y) with the slope of -3.
Click here to see answer by ankor@dixie-net.com(22740)

Question 213561: draw and find slope
1) (0,0) and (9,3)
2) (0,4) and (2,8)
3) (1,5) and (3,9)
4) (2,7) and (6,9)
5) (5,8) nd (4,3)
thanks
Click here to see answer by rfer(16322)

Question 213723: use x- and y intercepts to draw the graph for 3x - y = 6
Click here to see answer by drj(1380)

Question 211951: 3x-y=-13
2x+y=-9
Click here to see answer by drj(1380)

Question 213772: Solve the system of equation
-x+3y=9
3x-2y=4
Click here to see answer by checkley77(12844)

Question 213898: find an equation for the line with y intercept 0 that is parallel yo y=2x-5.
Click here to see answer by drj(1380)

Question 213972: -16=y+9
Click here to see answer by checkley77(12844)

Question 213987: The problem is
Click here to see answer by Earlsdon(6294)

Question 213989: I need to identify each equation as being an identity, contradiction, or conditional equation. I need to verify my solution. Here is my problem:
5x + 2 - 2x + 3 = 7x + 2 - x + 5
I feel like I'm way over my head. Please help!
Click here to see answer by drj(1380)

Question 214000: 3y-3x=12
Click here to see answer by checkley77(12844)

Question 214106: I am having problems with this question.
Consider the function 2 + y = 3x
I am asked to write the equation in standard and slope intercept form.
It also asks for the slope and y intercept.

Click here to see answer by drj(1380)

Question 214238: Write an equation of a line with the given slope and y-intercept.
m=0.9, b=0.6
Click here to see answer by rfer(16322)

Question 214246: Write each equation in standard form. Identify a,b,c
36) 1/3x - 1/3y = -2
38) 0.25y = 10
40) 0.25x = 0.1 + 0.2y
Click here to see answer by drj(1380)

Question 214268: I am doing Slope-Intercept and is not sure what to do I think you have to flip the fraction. The equation's question is write the slope for a perpendicular line.Problem: y= -9/10x+3 the 9/10 is the fraction AND THE -9 is NEGATIVE NINE. please help thanks!!!
Click here to see answer by Alan3354(69443)

Question 214236: how do i give standard form of equations of the line through these given points?
4,-2 and the slope is 1. and what about the ones with no slope.
how about parallel and perpendicular lines with given points? sorry i'm askin all these questions. i have a test on friday and this is my homework.
Please Help Me.
Click here to see answer by checkley77(12844)

Question 214226:
Click here to see answer by rfer(16322)

Question 214272: write an equation in slope-intercept form of a line satisfying the following conditions: passing through (5,6) and perpendicular to x=7
Click here to see answer by drj(1380)

Question 214284: I tried to start it, but I really don't know what to do!? Write the slope for a perpendicular line. 2x+4y=8 and I have one more question if it's not to much. Find the equation of the line that is perpendicular to the line y=-1/3x+5 and goes through the point (1,2). -1/3 is a fraction thanks!!
Click here to see answer by drj(1380)

Question 214303: I have a homework assignment and I need an example of one so I can answer the rest of the questions. Find the line passing through the following pairs of points?
(3, 11) (6, 20)
Can you please show me how to figure these kind of questions out. Thanks

Click here to see answer by scott8148(6628)

Question 214304: Find the intersection of the following pairs of lines.
f(x)=3x+8, g(x)=6x+1
He does not want the composition answer. Please help me.
Click here to see answer by scott8148(6628)

Question 214304: Find the intersection of the following pairs of lines.
f(x)=3x+8, g(x)=6x+1
He does not want the composition answer. Please help me.
Click here to see answer by drj(1380)

Question 214321: graph the equation 6x+2y=30 by finding the intercepts
Click here to see answer by drj(1380)

Question 214352: Find the equation of the line that passes through the points (3, -2) and (4, -2).
Click here to see answer by thinkingeye(11)

Question 214371: A system of linear equations in two variables can have _____ solutions.
A. infinitely many
B. undefined
C. zero
D. one

Click here to see answer by stanbon(75887)

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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