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

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Question 993320: If f(x)=mx+b, and k≠0, find f(x+k)-f(x) /k

Click here to see answer by Theo(13342)

Question 993446: Graph:
Y=-2x+1
Click here to see answer by jim_thompson5910(35256)

Question 993480: How do you write an equation for a line with a slope of 3/5 that goes through (-4,0)
Click here to see answer by rfer(16322)

Question 993450: Graph:
Y=2*
The power to be raised to is unknown (x)
Click here to see answer by macston(5194)

Question 993520: Given the line with the equation : x= -5
a) Find at least three ordered pairs that satisfy the equation.

b) Find the slope of the line.

c) Graph the line. You may draw your graph on the grid below or create your own graph.

Click here to see answer by jim_thompson5910(35256)

Question 993519: Given the line with the equation : y=3
a) Find at least three ordered pairs that satisfy the equation.

b) Find the slope of the line.

c) Graph the line. You may draw your graph on the grid below or create your own graph.

Click here to see answer by josgarithmetic(39617)

Question 993544: Word problem: The total cost for bowling includes the fee for shoe rental plus a fee per game. The cost of each game increases the price by $4. After 3 games, the total cost with shoe rental is $14. Question: Write an equation to represent the total cost "y" to rent shoes and bowl "x" games? second Question: How much is shoe rental? How is this represented in the equation?
I think answer is: y=X
Click here to see answer by solver91311(24713)

Question 993556: Given an equation of a line, find equations for lines parallel or perpendicular to it going through specified points. Find the appropriate equations and points from the table below. Simplify your equations into slope-intercept form.
Write the equation of a line parallel to the given line but passing through the given point.
y=-2/3x + 2; (9,-3)

Click here to see answer by solver91311(24713)

Question 993664: Write the slope-intercept form of an equation of the line with slope -9 and passes through the point (4, 6).
Click here to see answer by Cromlix(4381)

Question 993663: Write the slope-intercept form of an equation of the line with slope -0.7 and y-intercept -4
Click here to see answer by Cromlix(4381)

Question 993671: Write the equation of the line that satisfies the given conditions. Express the final equation in standard form.
x-intercept is -2 and the y-intercept is 5
Click here to see answer by Cromlix(4381)

Question 993684: Find the slope of the line through the points (3, -7) and (-2, 5).
Click here to see answer by fractalier(6550)

Question 993692: Find an equation of the line that passes through (0,7) and is parallel to y=1/4(x)+6
Click here to see answer by Boreal(15235)

Question 993685: Write in point-slope form, , the equation of the line through the two points (3,-7) and (-2,5)
Click here to see answer by josgarithmetic(39617)

Question 993687: The manager at a local Best Buy store kept track of daily sales of the iPhone 6 when it was first introduced. He noticed that sales were very high at first, but showed a steady decrease. For example, on day 5 after the phones first went on sale, the store sold 238 iPhone 6�s, but on day 10 after the phones first went on sale, the store sold only 153 iPhone 6�s. Assume that the relationship between number of days since the phone became available and number sold is linear and, let x = the number of days since the phone was released and y = number of phones sold at this Best Buy store.

a) Write two ordered pairs to represent the sales on the days described.

b) Find the slope of the line through those ordered pairs.

c) Write an equation in point-slope form of the line.
y

d) Convert the equation to slope-intercept form.

e) Explain what the slope and the y-intercept mean in the context of this problem.

Click here to see answer by Boreal(15235)

Question 993686: Given a line with equation . Write an equation in point-slope form of the line perpendicular to the given line through the point (2, -3).
Click here to see answer by solver91311(24713)

Question 993916: Convert the equation y-(-7)=-(12/5)(x-3) to standard form,Ax+By=C , where A, B, and C are integers and A > 0.
Click here to see answer by MathLover1(20849)

Question 993918: Convert the equation y-(-7)= -(12/5)(x-3) to slope-intercept form, y=mx+b
Click here to see answer by josgarithmetic(39617)

Question 993915: Given a line with equation 6x-y=5. Write an equation in point-slope form of the line perpendicular to the given line through the point (2, -3).
Click here to see answer by josgarithmetic(39617)

Question 993919: Graph the linear equation by finding and plotting the intercepts. Show all work and write each intercept as an ordered pair. You may draw your graph on the grid below or create your own graph.
3x-5y=15

x-intercept =
y-intercept =

Click here to see answer by rfer(16322)

Question 993942: 1/2x+2y=6
Click here to see answer by Alan3354(69443)

Question 993976: slope -1/4 through (-10,5) write in slope intercept form
Click here to see answer by josgarithmetic(39617)

Question 993976: slope -1/4 through (-10,5) write in slope intercept form
Click here to see answer by stanbon(75887)

Question 993976: slope -1/4 through (-10,5) write in slope intercept form
Click here to see answer by rfer(16322)

Question 993976: slope -1/4 through (-10,5) write in slope intercept form
Click here to see answer by MathLover1(20849)

Question 993989: Convert equation from point slope form to slope intercept form.
y-(-7)=-(12/5)(x-3)
Click here to see answer by fractalier(6550)

Question 993989: Convert equation from point slope form to slope intercept form.
y-(-7)=-(12/5)(x-3)
Click here to see answer by MathLover1(20849)

Question 994012: Find an equation of the line containing the given pair of points. (-2,-1)(-9,-4)
The equation of the line in slope-intercept form is y= ?
Please help me solve this problem.
Click here to see answer by KMST(5328)

Question 994092: Please help me find the linear equation for this by graphing the two intercept points
x + y = 1
3x - y = -25
Click here to see answer by stanbon(75887)

Question 994127: correct graph of -4x + 3y = 6.
Click here to see answer by ikleyn(52781)

Question 994180: find the equations that passes through the point (2,-2)and that is perpendicular to the line with equation y=2/3x-3

Click here to see answer by solver91311(24713)

Question 994303: I need help writing an equation of the vertical line that passes through the point (-5,7)??? Thank you in advance!
Click here to see answer by KMST(5328)

Question 994313: write an equation parallel to , and how would I know that it is parallel?
Click here to see answer by macston(5194)

Question 994314: what is an equation that is in general form and is perpendicular to and passes through the point (3,2)
Click here to see answer by macston(5194)

Question 994317: Water freezes at 0 degrees Celsius, which is the same as 32 degrees Fahrenheit. Also water boils at 100 degrees Celsius, which is the same as 212 degrees Fahrenheit. (Use fractions in your answers.)
(a) Use the freezing and boiling points of water to find a formula expressing Celsius temperature C as a linear function of the Fahrenheit temperature F.
C =
(b) What is the slope of the function you found in part (a)?

Click here to see answer by josgarithmetic(39617)

Question 994356: What is the equation of a line that has a slope of 0 and contains the point (-5,7)
Click here to see answer by Fombitz(32388)

Question 994337: Please check whether each ordered pair is a solution to the equation. Equation y= 2/3x+5, ordered pair (3,8). I don't understand
Click here to see answer by Fombitz(32388)

Question 994391: Write a justification for Line 2, Line 3, and Line 4. Explain why you chose each justification.
Line 1 5x � 2 = 3x + 7
Line 2 2x � 2 = 7
Line 3 2x = 9
Line 4 x = 4.5

Click here to see answer by stanbon(75887)

Question 994394: Write the slope-intercept form of an equation of the line with slope -9 and passes through the point (-2, -7).
Click here to see answer by stanbon(75887)

Question 994394: Write the slope-intercept form of an equation of the line with slope -9 and passes through the point (-2, -7).
Click here to see answer by Boreal(15235)

Question 994387: Four less than half a number is equal to 37 less than twice the number. How do you Translate the sentence into an equation and Solve the equation.

Click here to see answer by stanbon(75887)

Question 994385: You have $100 in your savings account and plan to deposit $20 each month. Write and graph a linear equation that represents the balance in your account.

Click here to see answer by Boreal(15235)

Question 994431: whats a number increased by nine is -6

Click here to see answer by stanbon(75887)

Question 994355: What is the equation of the line that has a slope of 2 and contains the point (-1,4)

Click here to see answer by josgarithmetic(39617)

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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