answersLogoWhite

0


Best Answer

-2

User Avatar

Kamron Roberts

Lvl 10
3y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

7y ago

If: y = x+c and y = 3 -x -5x^2

Then: x+c = 3 -x-5x^2

Or: 5x^2+2x+(c-3) = 0

Using the discriminant: 2^2 -4*5*(c-3) = 0 => c-3 = -4/-20 which is 1/5

Adding 3 to both sides: c = 16/5 or 3.2

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the exact value of c when y equals x plus c is a tangent to the curve y equals 3 -x -5x squared?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How do you find the slope of the tangent line to each curve at the given point?

By differentiating the answer and plugging in the x value along the curve, you are finding the exact slope of the curve at that point. In effect, this would be the slope of the tangent line, as a tangent line only intersects another at one point. To find the equation of a tangent line to a curve, use the point slope form (y-y1)=m(x-x1), m being the slope. Use the differential to find the slope and use the point on the curve to plug in for (x1, y1).


What is the tagalog for tangent?

There's actually no exact translation for tangent in Tagalog langauge.


What is the exact point of contact when the curve of y equals x squared -10x plus 13 touches the curve of y equals x squared -4x plus 7 showing work?

If: y = x^2 -10x +13 and y = x^2 -4x +7 Then: x^2 -10x +13 = x^2 -4x +7 Transposing terms: -6x +6 = 0 => -6x = -6 => x = 1 Substituting the value of x into the original equations point of contact is at: (1, 4)


How do you find the exact value of the gradient of the curve with equation y equals 1 divide by 4 minus x2 at the point where x equals 1 over 2?

You find the gradient of the curve using differentiation. The answer is 0.07111... (repeating).


How is the instantaneous speed obtained from a speed - time graph?

The instantaneous speed at a specific point on a speed-time graph is the slope of the tangent to the curve at that point. It represents the speed of an object at that exact moment in time. This can be determined by calculating the gradient at that particular point.


The slope of a line drawn tangent to a point on the curve of a position vs time graph describes what concept?

The slope of a line drawn tangent to a point on a position vs. time graph represents the instantaneous velocity of the object at that point. It describes how the position of the object is changing at that exact moment in time.


Find the equation of the tangent line at the given value y equals ln x squared at x equals 1?

Given y=LN(x2). To find the equation of a tangent line to a point on a graph, we must figure out what the slope is at that exact point. We must take the derivitave with respect to x to come up with a function that will give the slope of the tangent line at any point on the graph. Any text book will tell you that the derivative with respect to X of LN(U) is the quantity U prime over U(In other words, the derivitive of U over U. U is whatever is inside the natural log). In this case, it is y = (2x/x2). To find the slope, we then plug in an x coordinate, 1. We get y=2. The slope of the tangent line at this point is 2. We now have m for the slope-intercept form y = mx + b. Now we must find b. B is the y intercept, aka where does the graph intersect the y axis. We use the slope. We know that the graph of the tangent line contains the point (0,1). We go down 2 and left one, to find that the tangent line intercepts the y axis at -1. We now have B. The equation of the tangent line of y = LN(x2) at X = 1 is y = 2X-1. Hope this helps!!!


What is the area of a circle with a 13 inch radius?

530.9291585 squared inches to be exact. * * * * * To be exact? Since when has it been possible to express an exact multiple of pi?


What is the exact value of 3 squared - - 6 squared?

-3


What is the exact total land area of Asia in km squared?

44,579,000 km2


Use Guassian quadrature with n equals 1 and n equals 2 and compare to exact value I equals compare to exact value?

Use Guassian quadrature with n=1 and n=2 and compare to exact value I=


What are the advantages and disadvantages of the Lorenz curve?

The Lorenz curve has a major disadvantage of not showing the distributions exact value. It is also makes it difficult to compare different data sets.