Tutors Answer Your Questions about Graphs (FREE)
Question 305984: Ok guys these graphs are really getting to me :(
My new question today is Graph the equation -2.2x+3.9y=-7.8 and -2.7x + 0.9y =7.3
I NEED TO FIND THEIR EXACT INTERSECTION!
NO matter how many times I try and answer it myself it is wrong!
Click here to see answer by JBarnum(2146)  |
Question 306174: i have found the y intercept and the vertex for the following equation however my graph is supposedly not right. My graders are saying it should open upside down and mine opens upward. so where am i messing up? my yintercept is 0,-5 and vertex is -1,-2. equation is y=-3x^2-6x-5
Click here to see answer by Fombitz(32388)  |
Question 306592: Find an equation of the line satisfying the conditions given. Express your answer in standard form.
Parallel to 3x – y = (-5) and passing through (-1, 0)
is 9x +y = -3 the right answer? That's what I got but I really have no idea what I am doing.
Click here to see answer by Fombitz(32388)  |
Question 307412: I was reviewing the quadratic equation y=-3x^2-6x-5 for problem #252391. I had already found that if x=0 then y=-5. I'm having trouble creating a table of ordered pairs to use in graphing using excel. I would think I need at least 3 sets of ordered pairs to be able to do this. Can someone show me what other pairs to use and how they were figured. I want to understand this, I'm not very good at these equations. Thanks!
Click here to see answer by jim_thompson5910(35256) |
Question 308363: Consider the equation f(x)=x^2+6x+4
Find the x-intercepts by completing the square.
Find the vertex
Find the axis of symmetry
I tried working out this problem 3 times and i can not solve it. My teacher said that when i find the x-intercepts that i should leave my answer in square roots rather than the decimal approximations.
Click here to see answer by scott8148(6628)  |
Question 308363: Consider the equation f(x)=x^2+6x+4
Find the x-intercepts by completing the square.
Find the vertex
Find the axis of symmetry
I tried working out this problem 3 times and i can not solve it. My teacher said that when i find the x-intercepts that i should leave my answer in square roots rather than the decimal approximations.
Click here to see answer by CharlesG2(834) |
Question 308729: Solve each of the following inequalities and graph the solution
y-3>=5
I guess that this needs a solution set, not y>=8, and I don't really know how to get a solution set, I have a number of other problems of this sort, so if someone could please explain how to get a solution set I'd be most thankful
Click here to see answer by rapaljer(4671)  |
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