0
10
Gabe Kshlerin
Wiki User
∙ 11y agoIf you don't have enough experience to be able to visualize the graph by
looking at the equation, then here's what I suggest:
-- Write the equation:
y2 = -8x
-- Divide each side by -8 :
- 1/8 y2 = x
-- Now take a piece of paper and a pencil. Make a list of 5 or 10 or 15 or 20 numbers
for 'y', some negative and some positive. Then, for each number on the y-list, use the
equation to calculate the corresponding value of 'x', and write that next to it.
-- On the graph, mark a dot at each of the points you calculated. Keep marking more
points until you can see how it's shaping up, and what the curve will look like.
I believe you're going to wind up with a parabola, with its nose at the origin, lying on its
side and opening to the left.
Add your answer:
Earn +20 pts
How do you graph the equation 8x plus 2y equals -1?
Same way you graph y = -4x - 0.5
What is the vertex of the parabola y equals x2 plus 8x plus 5?
The vertex has a minimum value of (-4, -11)
What does a graph look like for the equation 8x - 8 equals 0?
The line 8x-8=0 is the same as x=1. The graph looks like a vertical line that intersects the x axis at x=1.
How do you graph 8x equals 4y?
4y = 8x Divide each side by 4: y = 2x Draw a straight line, through the origin, with a slope of +2 .
How do you accurately graph y -x2 8x 5 as a parabola?
There are two (main) ways to graph this parabola. The first is to simply substitute in values of x, find the corresponding y values and then plot those points and connect the points with a curve. The second way is to 'complete the square' so that we can find where the maximum or minimum occurs and the y-intercept and graph from those two points. This is the process described below. y = -x2 + 8x + 5 y = -(x2 - 8x) + 5 y = -(x2 - 8x + 16 - 16) + 5 y = -(x2 - 8x + 16) + 16 + 5 y = -(x-4)2 + 21 From this we can see that a maximum occurs at (4,21). To find the y-intercept, substitute in x=0, giving y=5. From these two points, we get a pretty good idea of what the graph looks like. If you want more accuracy, substitute in more values of x.
What is the slope of the graph of 8x 4y equals 11?
2
How do you graph the equation 8x plus 2y equals -1?
Same way you graph y = -4x - 0.5
What is x squared minus 8x plus 8y plus 32 equals 0 in standard parabola form?
7
What is the vertex of the parabola y equals x2 plus 8x plus 5?
The vertex has a minimum value of (-4, -11)
What is the slope of a line that is perpendicular to the graph of 8x plus y equals 6?
+ 1/8
What does a graph look like for the equation 8x - 8 equals 0?
The line 8x-8=0 is the same as x=1. The graph looks like a vertical line that intersects the x axis at x=1.
How do you graph 8x equals 4y?
4y = 8x Divide each side by 4: y = 2x Draw a straight line, through the origin, with a slope of +2 .
Where does the parabola x2 plus 8x equals 20 have roots?
x^2+8x=20 x^2+8x-20=0 (x+10)(x-2)=0 x=-10 and x=2 are the roots (intercepts) (-10,0) and (2,0) are the x-intercepts.
Graph -8x plus 3Y equals 12?
-8x+3y=12 3y = 8x+12 y = (8/3)x + 4 So it will be a line with slope 8/3 and y intercept of 4
How do you accurately graph y -x2 8x 5 as a parabola?
There are two (main) ways to graph this parabola. The first is to simply substitute in values of x, find the corresponding y values and then plot those points and connect the points with a curve. The second way is to 'complete the square' so that we can find where the maximum or minimum occurs and the y-intercept and graph from those two points. This is the process described below. y = -x2 + 8x + 5 y = -(x2 - 8x) + 5 y = -(x2 - 8x + 16 - 16) + 5 y = -(x2 - 8x + 16) + 16 + 5 y = -(x-4)2 + 21 From this we can see that a maximum occurs at (4,21). To find the y-intercept, substitute in x=0, giving y=5. From these two points, we get a pretty good idea of what the graph looks like. If you want more accuracy, substitute in more values of x.
Which equation has the steepest graph y equals 7x plus 3 y equals -2x plus 6 y equals -10x - 4 y equals 8x - 1?
y=-10x-4
Y-8x plus 9y equals?
Y-8x plus 9y equals 10y-8x.
