Answer:
Length = x+4
Step-by-step explanation:
Area=length*width. First, you need to factor A(x) = x^2+10x+24, which would equal to (x+4)(x+6).
(x+4)(x+6)=(x+6)*length, length = x+4.
y =
x + 3 → B
subtract 5x from both sides
- 3y = - 5x - 9 ( multiply through by ( - 1 ) )
3y = 5x + 9 ( divide all terms by 3 )
y =
x + 3 ( in slope- intercept form )
Number of faces + (Number of vertices - Number of edges) = 2
So plugging in the numbers it would then be
18+(12-30)=2
18-18=2
0=2
Kelvin would be wrong and I disagree with him. (Because ...*plugin work cited above*)
Answer:
(a) f'(1)=-4
(b) y+4x-4=0
Step-by-step explanation:
<u>Tangent Line of a Function</u>
Given f(x) a real differentiable function in x=a, the slope of the tangent line of the function in x=a is given by f'(x=a). Where f' is the first derivative of f.
We are given

The derivative is

(a) The slope of the tangent line at (1,0) is


(b) The equation of the tangent line can be found with the general formula of the line:

Where m is the slope and the point (xo,yo) belongs to the line. We have m=-4, xo=1, yo=0, thus

Or, equivalently
