Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

Tutors Answer Your Questions about Graphs (FREE)

Question 451149: Find the perimeter of the triangle, round to the nearest tenth
(-3,4),(-1,-2),(3,-1)
answer choices are;
19.3
20
18.3
17.9
Click here to see answer by ewatrrr(10682)

Question 451189: give the slope of a perpendicular to the given line y=-7x+5
Click here to see answer by josmiceli(9647)

Question 451126: Which of the following is not a step used when graphing the equation y=-1/4-5 using the slope-intercept method?
Click here to see answer by solver91311(16868)

Question 451412: I have a final tomorrow in 9th grade Algebra. What should I study???
Click here to see answer by edjones(7569)

Question 451496: Please help. Solve the system of equations by graphing. y=-3/5x and y=-1/5x+2. Thank you.
Click here to see answer by cwmcwilly07(5)

Question 451690: graph x+2y=12
Click here to see answer by MathLover1(6613)

Question 451862: write the equation of a line in slope intercept form if the slope is -3/2 and it passes through the orign
Click here to see answer by Alan3354(30958)

Question 451942: write in single logarithm
2log x+1/2 log y
Click here to see answer by stanbon(57219)

Question 451941: graph y=2x^2-8x+3
Click here to see answer by jorel1380(2518)

Question 452078: Hi, I need help with this problem:
State the range of y=-e^x+1, and find the asymptote of itd graph?
Thank you.
Click here to see answer by solver91311(16868)

Question 452078: Hi, I need help with this problem:
State the range of y=-e^x+1, and find the asymptote of itd graph?
Thank you.
Click here to see answer by htmentor(788)

Question 452088: What is the slope of the line that contains the points (12, 17) and (-8, -17)?
Click here to see answer by solver91311(16868)

Question 452102: Solve the system of equations by graphying. Then classify as consistent or
inconsisient and as dependent or independent.
6x-9y=-36
9y-6x=36
Solution of the system of equations?
A. No solution
B. Infinitely many solutions
C. A point
Is systen consistsent or inconsisient?
Are the equations dependent or independent?

Click here to see answer by jorel1380(2518)

Question 452243: 3x+7y=-4
-7x+y=44
Click here to see answer by mananth(12270)

Question 452242: Can I please have some help with the following
3x+9y=21
-8x+y=19

7m+n=1
m-2n=13
Click here to see answer by mananth(12270)

Question 452212: solve the system by graphing:
y=-x-2
y=2x+13
Click here to see answer by mananth(12270)

Question 452450: what is the slope and y intercept of x>2
Click here to see answer by stanbon(57219)

Question 452459: Please help me solve this equation
Graph the system of inequalities. Show all of your work.
y < x - 5
2x + 4y > 8
Click here to see answer by stanbon(57219)

Question 452482: 6<-4x+5 or 9<=-5x+3
What is the solution to the compound inequality.
Click here to see answer by lwsshak3(6460)

Question 452527: (6,-5);7x+3y=5
Click here to see answer by Alan3354(30958)

Question 452463: Write an equation of the line satisfying the given conditions. A line perpendicular to y = 2 + 3x.

Click here to see answer by poliphob3.14(115)

Question 452728: As a mother, I am having problems remembering the - and + on the algebra.
9<-3X
If I am correct then it would be -3
Click here to see answer by ilana(307)

Question 452773: What is intercept for the graph 8x-2y=8
Click here to see answer by rfer(12644)

Question 452806: Graph the equation and identify the y-intercept.
y= -2/3x+4
Click here to see answer by jim_thompson5910(28476)

Question 453097: How do you know if the parabola opens upward or downward? What are 3 key points you can determine and graph from the equation? Demonstrate with an example.

Click here to see answer by stanbon(57219)

Question 453231: how do i sovle and graph the inequality: {xeR| |x+2|<5}
Click here to see answer by stanbon(57219)

Question 453395: find the equation of the line between (1,4)and(3,1)
I couldn't find an area for slopes, hope this works out. thanks in advance.
Click here to see answer by mananth(12270)

Question 453391: find the equation of the line between (1,4)and(3,1), don't actually need to graph this, i thought this would be the best section for the question.
Thanks in advance.
Click here to see answer by mananth(12270)

Question 453388: graph y=2x+3
Click here to see answer by mananth(12270)

Question 453427: what is the solution of the following system of equation
2x+y=6
3x-7y=9
Click here to see answer by ichudov(499)

Question 453502: Using correct mathematical notation and symbols, express the following in set-builder notation: Z = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
Click here to see answer by Edwin McCravy(8879)

Question 453449: So;lve each inequality
1.) -61 > b-31

2.) FiFteen is greater than a number minus 7.
3. A number plus 11 is less than of equal to 9.

Solve each problem by either drawing a diagram or writing an equation. Ezplain why you chose the method you did.
1. There are 45 students with in Jasons class. One-ninth of the students have hazel eyes. How many students have hazel eyes?
2. Alice is making casserole snacks. Each snack will be 2 inches by
4 inches. How many snacks will she have if she bakes 4 batches,
each in a 12-inch by 16-inch baking pan?

Choose a strategy to solve each problem.
3. Suppose you buy a basketball at a garage sale for $3.You then
sell the ball to a friend for $4.25.You buy the ball back for $4.75,
and then sell the ball for $5. How much money do you make?

4.
Derek gave Kyle half of his marble collection. Kyle gave Janis
half of the marbles he received from Derek. Janis kept 12 of the
marbles and gave the remaining 16 to Jill. How many marbles
did Derek give to Kyle?

5. Use a calculator or a table of square roots to find each square root to
the nearest tenth.
a. 43
b. 71
c. 56
d. 167
e. 214
f. 1,421
tELL WHEATHER EACH NUMBER IS RATIONAL.
18
3/8
6.831
Click here to see answer by edjones(7569)

Question 453542: Graph each line and shade appropriate portion, identify common shaded area
• Find coordinates of all corner points
-2x + y ≤ 6, x ≤ 2, x ≥ 0, y ≥ 0
Click here to see answer by kieoshag87(1)

Question 453655: please show me how to graph y=3(1.9)^x... explain
Click here to see answer by solver91311(16868)

Question 453831: I know the answer is k > -21 for 5(2k+3)-2(k-8)>3(2k+4)+k-2
but I don't know the steps on how you get that answer !
Click here to see answer by robertb(4012)

Question 453858: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
8x + 11y = -50
-32x – 44y = -200

Click here to see answer by mananth(12270)

Question 453970: A student has an average of 72 on four exams. If the final exam is to count double, what score does she need to have an averge of 80?
Click here to see answer by richwmiller(9135)

Question 454042: how to find intercepts for -3x+8y=24?
Click here to see answer by josmiceli(9647)

Question 454076: The lost value of equipment over a period of time is called depreciation. The simplest method for calculating depreciation is straight-lne depreciation. The annual straight-line depreciation D of an item that costs x dollars with a useful life of n years is D= (1/n)x. Find the depreciation for items with the given characteristics.
Cost is $15,968; life is 13 yr
The annual straight-line depreciation is approximately $_ per year.
(Round to hte nearest cent.)
Thankyou for your help it is much appreciated.
Click here to see answer by stanbon(57219)

Question 454094: Which of the following is the equation of the axis of symmetry of the quadratic equation y = 2x^2 + 24x + 62
Click here to see answer by richwmiller(9135)

Question 454094: Which of the following is the equation of the axis of symmetry of the quadratic equation y = 2x^2 + 24x + 62
Click here to see answer by rwm(914)

Question 454094: Which of the following is the equation of the axis of symmetry of the quadratic equation y = 2x^2 + 24x + 62
Click here to see answer by Alan3354(30958)

Question 454092: In a certain question, total alcoholic beverage sales were $110.4 billion in 2006 and 134.1 billion in 2009.
(a) Let the x-axis denote time and the y-axis denote the amount of alcohol sales (in billions). Let x = 0 correspond to 2006. Fill in the blanks: The given data is represented by the points (__,100.4) and (3,___).
(b) Find the linear equation determined by the two points in part (a)
(c) Use the equation in part (b) ot estimate the alcohol sales produced in 2008.
(d) If the model remains accurate, when do alcohol sales reach $170 billion?
Thankyou for the help. It is much appreciated.
Click here to see answer by josmiceli(9647)

Question 454276: How do I graph of the following:
3x+y=5
-2x+3y=4

Click here to see answer by mananth(12270)

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