Answer:
See explanation
Step-by-step explanation:
Consider triangles CAX and BAX. In these triangles,
By SAS postulate,
Congruent triangles have conruent corresponding parts. So,
Consider triangles CXY and BXY. In these triangles,
By SAS postulate,
Congruent triangles have conruent corresponding parts. So,
Answer:
Step-by-step explanation:
So we have the inequality:
Divide both sides by 5:
And, we're done!
This means that the solution of the inequality is all values less than or equal to 9.
I hope this helps!
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