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

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Question 1067730: What point on the graph do I get from the equation y=2x+1

Click here to see answer by josgarithmetic(39617)

Question 1067750: can you write an equation in a point-slope form that passes through(7,-1) and has a slope of -6

Click here to see answer by math_helper(2461)

Question 1067584: a local dairy association enlists the help of a marketing research firm to predict the demand for milk.the reaserch finds that the local demand for milk can be predicted by the equation q=-4000+10000
Click here to see answer by ankor@dixie-net.com(22740)

Question 1067814: The line passes through points (4,7) and (-5,-5), where the line intersects the y axis, what is the slope? 1/3 or 2/3 or 3/2 or 1/2
Click here to see answer by josgarithmetic(39617)

Question 1067842: Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation 3x−2y=12; A(...; 9), B(4; ...)
Click here to see answer by solver91311(24713)

Question 1067900: Use the four-step process to find the slope of the tangent line to the graph of the given function at any point.
f(x) = −10x^2 + 4x
step 1: f(x + h) =
Step 2:f(x + h) − f(x) =
step 3:f(x+h)-f(x)/h =
step 4: f '(x) = lim h → 0 f(x + h) − f(x)/h =
Click here to see answer by josgarithmetic(39617)

Question 1067912: please help me solve this equation ((( y=-x; y-3=-1(x+9) y-6=1/2(x-14) y+1=1/2 x )))
Click here to see answer by Alan3354(69443)

Question 1067916: C - 5G =-1
C^2 + G^2=4
Click here to see answer by josgarithmetic(39617)

Question 1067916: C - 5G =-1
C^2 + G^2=4
Click here to see answer by ikleyn(52781)

Question 1067917: 6e+u=3
e^2+u^2=16
Click here to see answer by josgarithmetic(39617)

Question 1067967: Solve by substitution method x-2y=2...
X^2+y^2-2x+3y=4
Click here to see answer by Alan3354(69443)

Question 1067978: Solve by substitution method x-2y=-2...
X^2+y^2-2x+3y=4
Click here to see answer by Boreal(15235)

Question 1068079: a father is 25 years older than his son. the sum of their ages is 53 years find their ages.
Click here to see answer by ikleyn(52781)

Question 1068099: if 2a+3b+3c=0 , a+b+2c=-3 , 3a-b-c=1 find a,b,c. please help me that u
Click here to see answer by Edwin McCravy(20055)

Question 1067979: y+4=-10/7 (�+8)
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Question 1068301: { y=1/2x+2 y=-x-1

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Question 1068305: Write an equation of a line has y intercept of 5 with an undefined slope.
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Question 1068305: Write an equation of a line has y intercept of 5 with an undefined slope.
Click here to see answer by josmiceli(19441)

Question 1068309: There are 2 candles, one shorter than the other, which are lit at the same time.
After a while the longer one is 12cm in height while the other one is 5cm shorter than it's beginning lenght.
You know that the shorter candle burns half as fast as the longer one.
What's their lenght on the exact moment when they're both equal in lenght?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1068370: Please help with the following question from a quiz review:
The function d=125+80n models the amount of money, in dollars, the zip line ticket cashier has in her cash register after selling n tickets. How much money did the cashier have in the register before she sold any tickets? Please explain and show as much work as possible!
Thank you!!
Click here to see answer by 31(5)

Question 1068391: Hi, I was asked to put -6x + 3y = 9 into y = mx + b form, as well as find the slope and vertical/horizontal intercepts.
However, I'm unsure how to put it into the y = mx + b form due to the 3 in front of the y.

Thank you!
Click here to see answer by ikleyn(52781)

Question 1068393: 6t+3<3t+12
Click here to see answer by josgarithmetic(39617)

Question 1068514: Write down the coordinates of the point 5 units to the left of the y axis and 3 units above the x axis
Click here to see answer by ikleyn(52781)

Question 1068513: Write down the coordinates of a point located on the y axis, below the x axis
Click here to see answer by ikleyn(52781)

Question 1068628: A girl runs at a constant speed for t minutes to run m km. How long, in second, will ita take her to run n km if she runs at the same speed?
Click here to see answer by josgarithmetic(39617)

Question 1068723: Which graph best represents the equation -4x+5y=8

Click here to see answer by Alan3354(69443)

Question 1068736: y=5;(-3,6)
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Question 1068798: write an equation in slope intecerpect form for the line that has a slooe of 3 and pases througth (1,-2) and (3,-7).

Click here to see answer by josgarithmetic(39617)

Question 1068822: Using only 32 cent and 20 cent stamps, Charlie put $3.36 postage on a package he sent to his sister. He used twice as many 32 cent stamps as 20 cent stamps.
Click here to see answer by josgarithmetic(39617)

Question 1068816: How do you solve this?
Find a linear function 𝑓(𝑥) given (2) =-5 and 𝑓(-1) =3. Then find (1).
Click here to see answer by josgarithmetic(39617)

Question 1068808: mike scored one fifth of the teams total points and andy scored one tenth of the teams points. their total was 42 points. what is the teams total points?
Click here to see answer by KMST(5328)

Question 1068829: find the equation of a line through (3,-2) parallel to y=-2x+5

Click here to see answer by Fombitz(32388)

Question 1068836: How do you solve this?
Find the equation of the line passing through (3,-1) and perpendicular to the line 3𝑥 +9 𝑦 = −2.

Click here to see answer by Alan3354(69443)

Question 1068841: What is the equation of this slope? m=9,b=7
Click here to see answer by addingup(3677)

Question 1068839: What are the steps to answering this question?
Find the equation of the line passing through (-1,4) and perpendicular to the line x=5.
Click here to see answer by josgarithmetic(39617)

Question 1068838: How is this solved? What are the steps for it?
Find the equation of the line passing through (1,7) and perpendicular to the line y=3.
Click here to see answer by josgarithmetic(39617)

Question 1068848: 1) -3y=0
2) -5x+24y=200
3) 2x-3xy+5y+10

Click here to see answer by Fombitz(32388)

Question 1068868: Please help me solve this equation:
Click here to see answer by Fombitz(32388)

Question 1068878: 2/3x - 2/3y = 2
Click here to see answer by Fombitz(32388)

Question 1068933: the sum of two numbers X and Y is 11. the product of the two numbers is 21. 25. solve your equations to find the possible values of X and Y by using simultaneous equations.
Click here to see answer by josgarithmetic(39617)

Question 1068964: Write down the linear equation whose solution (i)x=3 (ii)y=2

Click here to see answer by josgarithmetic(39617)

Question 1069040: What is the linear function giving the total charge as a function of the number of hours the job takes: An appliance repair person charges $225 of a 6 hour job and $155 for a 4 hour job.
Express the function in slope-inetercept form.
Y=mix+b
Click here to see answer by josgarithmetic(39617)

Question 1069090: COULD YOU PLEASE HELP ME FIND THE SLOPE-INTERCEPT AND THE STANDARD FORM OF A LINE PASSING THROUGH (3, -5) THAT HAS A SLOPE OF -7/-3. I HAVE BEEN WORKING IT OUT, BUT I CAN ONLY GET TO THE POINT WHERE Y IS = TO -7/-3+12 SNF I CANT GET ANYMORE THEN THAT.
Click here to see answer by Alan3354(69443)

Question 1069123: 6�-3y=-15 2�+y=-3
Click here to see answer by Boreal(15235)

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