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

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Question 1144247: y = -3x + 6

Click here to see answer by josgarithmetic(39617)

Question 1144248: slope is -2 and a y intercept of 5
Click here to see answer by Alan3354(69443)

Question 1144263: A smaller number and a larger number add up to 15 and have a difference of 7
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Question 1144263: A smaller number and a larger number add up to 15 and have a difference of 7
Click here to see answer by josgarithmetic(39617)

Question 1144275: determine the slope of the line that passes through the points at (-1,5) and (-4,10)
Click here to see answer by ikleyn(52781)

Question 1144368: The speed of sound through air is linearly related to the temperature of the air. If sound travels at 335 m divided by sec at 0 degrees Upper C and at 359 m divided by sec at 40 degrees Upper C, construct a linear model relating the speed of sound (s) and the air temperature (t). Interpret the slope of this model. s=?
Click here to see answer by josgarithmetic(39617)

Question 1144387: Find all values of h for which the quadratic equation has no real solutions 9x^2+5x-h=0. Write your answer as an equality or inequality in terms of h.
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Question 1144394: Jasmine got a collection of books from her parents,35, and a collection of books from her grandparents of 25. She gets 3 books per month on average. How many books will she have in her collection at 2 years?

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Question 1144430: During one month, a homeowner used 600 units of electricity and 100 units of gas for a total cost of $394. The next month, 400 units of electricity and 150 units of gas were used for a total cost of $286. Find the cost per unit of gas
Click here to see answer by ikleyn(52781)

Question 1144463: The solution to a system of two linear equations is
(4,-3). One equation has a slope of 4.
The slope of the other line is the negative reciprocal of the slope of the first. Find the system of equations.
Click here to see answer by ikleyn(52781)

Question 1144519: The line passing through the point (a,b) with slope equal to zero
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Question 1144519: The line passing through the point (a,b) with slope equal to zero
Click here to see answer by josgarithmetic(39617)

Question 1144519: The line passing through the point (a,b) with slope equal to zero
Click here to see answer by Alan3354(69443)

Question 1144520: sketch the straight line defined by the linear equation by finding the y intercepts and the x intercepts -2x-8y+24=0
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Question 1144518: Find an equation of the line the passes through the point (1,-2) and is perpendicular to the line passing through the points (-2,-1) and (4,3)
Click here to see answer by josgarithmetic(39617)

Question 1144599: what is the slope and y- intercept of y=-3/4x+5
Click here to see answer by Alan3354(69443)

Question 1144595: Graph the line through (4,1) with slope 4/3
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Question 1144595: Graph the line through (4,1) with slope 4/3
Click here to see answer by josgarithmetic(39617)

Question 1144604: linear functions given h(4)=-10 and h(-1)=10 then find h(3)

Click here to see answer by greenestamps(13200)

Question 1144640: a) Graph the equations y=-x^2+3x+8 & y=2x+6 (find suitable coordinates to plot)
b) Use the graph to find simultaneous solutions for these equations (indicate location of the solution on the graph)
c) Verify your answer in part b) by finding the x-coordinates using the Quadratic Formula i.e. solve the equations simultaneously by substitution
Click here to see answer by josgarithmetic(39617)

Question 1144645: y=1 if x is rational and y=0 if x irrational. how would you describe this on a graph.
Click here to see answer by ikleyn(52781)

Question 1144706: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 65% salt and Solution B is 90% salt. She wants to obtain 70 ounces of a mixture that is 80% salt. How many ounces of each solution should she use?
Click here to see answer by Alan3354(69443)

Question 1144712: A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 85% pure antifreeze. The company wants to obtain 170 gallons of a mixture that contains 15% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?

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Question 1144708: A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 6% vinegar, and the second brand contains 11% vinegar. The chef wants to make 320 milliliters of a dressing that is 7% vinegar. How much of each brand should she use?
Click here to see answer by josgarithmetic(39617)

Question 1144755: Find a linear equation whose graph is the straight line with the given properties.
Through (5,45) with slope 9
y(x)=
Click here to see answer by rothauserc(4718)

Question 1144764: Decide which of the two given functions is linear and find its equation.
x=0,3,6,10,15
f(x)=0,3,47,77,114
g(x)=-1,26,53,89,134
g(x)=
Click here to see answer by ikleyn(52781)

Question 1144805: Anna weighed
25pounds at the age of three;
at the age of five, she weighed 36 pounds.
Assume the relationship between age and weight is linear.
Let t be Anna’s age in years.
a) Find the linear equation relating weight to age.
b) What should Anna weigh when she is eight years of age
c) y−intercept: ( , ). Verbally interpret.
d) Slope = ________. Verbally interpret.

Click here to see answer by ankor@dixie-net.com(22740)

Question 1144843: Find the slope-intercept form of an equation for the line that passes through (-1,2) and is parallel to y equals 2x-3.
Click here to see answer by josmiceli(19441)

Question 1144843: Find the slope-intercept form of an equation for the line that passes through (-1,2) and is parallel to y equals 2x-3.
Click here to see answer by MathTherapy(10552)

Question 1144940: Please help me: this is the question through (-4,4) and perpendicular to
2x + 3y=8. Thank you!
Click here to see answer by Edwin McCravy(20055)

Question 1145046: Graph -1/2 passing through the point (1,3)
Click here to see answer by ikleyn(52781)

Question 1145046: Graph -1/2 passing through the point (1,3)
Click here to see answer by Alan3354(69443)

Question 1145053: how you solve this question the equation y= 2 : y= 4x -2: and y = -2x+10 form the side of a triangle on a cartesian plane. Without graphing ,determine the coordinates of the vertices?
Click here to see answer by ikleyn(52781)

Question 1145217: Find a point on the line and the lines slope.
y+3=3(x+1)
Click here to see answer by josgarithmetic(39617)

Question 1145411: I need to put 2x+y=4 in slope-intercept form and graph it

Click here to see answer by ikleyn(52781)

Question 1145411: I need to put 2x+y=4 in slope-intercept form and graph it

Click here to see answer by Alan3354(69443)

Question 1145568: For 2y+8x=-6 determine the value of y for both x = -3 and x = -1, then graph the line using these two points.
Click here to see answer by Alan3354(69443)

Question 1145566: please help of this
1. Given the function
Y=-(x+1)^2+3

a) Find the X- and Y- intercepts (2 points)
b) Find the maximum or minimum values (2 points)
c) Sketch the function.

Click here to see answer by josgarithmetic(39617)

Question 1145591: Find y if the slope of the line through (3,y) and (1,13) is -3
Click here to see answer by richwmiller(17219)

Question 1145613: answer MSA BOOK College algebra Page 48-52 Number 37-126
Click here to see answer by ikleyn(52781)

Question 1145612: Distance Word Problem

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Question 1145652: r+4 greater than 8(R=2)
Tell whether the value is a solution of the inequality
Click here to see answer by richwmiller(17219)

Question 1145708: if a line passes through (0,-5) and perpendicular with 6x-y=6 what's the slope of the answer
Click here to see answer by josgarithmetic(39617)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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