Answer:
6
Step-by-step explanation:
use the formula of slopes
Step-by-step explanation:
(3x + 2y =19)(3)
-9x + 8y =-29
9x + 6y = 57 <em><u>NOTE</u></em><em><u>:</u></em> we cross here 9x in first
-9x + 8y = -29 we cross here - 9x in second
Since 9x and - 9x are opposite
___________
6y +8y = 57 - 29
14y = 28
Y=28/14
Y=2
Replace y in second equation of this system:
-9x + 8y = - 29
-9x +8(2)= - 29
-9x + 16 = - 29
-9x = -29 - 16
-9x = - 45
X= -45/-9
X=5
Hope this helps..
Answer: Plug in answers work backwards; or learn log to get rid of powers
Step-by-step explanation: save time on your test by cheating yourself of knowledge
Answer:
The equation of the line tangent to the graph of f at x = -1 is 
.
Step-by-step explanation:
From Analytical Geometry we know that the tangent line is a first order polynomial, whose form is defined by:
(1)
Where:
- Independent variable, dimensionless.
- Dependent variable, dimensionless.
- Slope, dimensionless.
- Intercept, dimensionless.
The slope of the tangent line at 
is:
(2)
If we know that 
, and 
, then the intercept of the equation of the line is:
The equation of the line tangent to the graph of f at x = -1 is .
