SOLUTION: Hello, Given the following how would I solve for c? The line function {{{y=2x+4}}} is tangent to the function {{{y=x^2+8x+c}}} (I know the answer is: 13 but not sure how to do

Algebra.Com
Question 1121490: Hello,
Given the following how would I solve for c?
The line function is tangent to the function
(I know the answer is: 13 but not sure how to do it)
Thanks

Found 2 solutions by josgarithmetic, muffin8:
Answer by josgarithmetic(39616)   (Show Source): You can put this solution on YOUR website!
-------------------------------------------------------------------------
Given the following how would I solve for c?
The line function is tangent to the function
(I know the answer is: 13 but not sure how to do it)
----------------------------------------------------------------------------

Line touches parabolic function at one single point.

-



-------discriminant must be 0. ONE solution.











Answer by muffin8(5)   (Show Source): You can put this solution on YOUR website!

RELATED QUESTIONS

Given the function 2x+y=7 find the following: a. X-intercept b. Y-intercept c. Slope... (answered by ewatrrr)
Which of the following ordered pairs is on the graph that represents the algebraic... (answered by ewatrrr)
The directions say: "For each function, the vertex of the function's graph is given. Find (answered by oscargut)
Hello, I need help writing this into a tangent function. The only things I have been... (answered by greenestamps)
1. If y = a(x - 3)^2 + c and y = (2x - 3)(2x + b) represent the same quadratic function,... (answered by Earlsdon)
Hello, I need help with this multiple choice question. Detailed working out would be... (answered by ikleyn)
Hi all, Im having trouble with the following Function and Domain problem. I have already... (answered by stanbon)
Question regarding about Quadratic Function. This is the problem: A quadratic... (answered by nerdybill)
hello to see if anyone can help If I have this function f (x) = x^3/3 - x^2/2 - 2x + 2 (answered by stanbon)