You answer is -25 your welcome
Answer:
Step-by-step explanation:
<u>Equation for this case is:</u>
⇒ y = 6(x - 1) + 10 as Rs. 10 for the first km and Rs. 6 for the rest (x - 1) km
⇒ y = 6x - 6 + 10 simplifying
⇒ y = 6x + 4 final equation
<u>For x = 15 km we have total of:</u>
Dy/dx= tanx, can be answered directly using the derivatives of trigonometric functions but this is how the answer is derived
=(sinx/cosx) basic trigonometric function
= [cosx cox+sinxsinx]/cos^2x
=[cos^2x+sin^2x]/cos^2x
cos^2+sin^2x = 1 ; fundamental trigonometric identities
= 1/cos^2x; reciprocal relations
= sec^2x+C
The answer is letter B.sec^2x+C
The point-slope form:
We have the slope m = 3 and the point (-1, 5). Substitute:
<em>use distributive property</em>
<em>add 5 to both sides</em>
- slope-intercept form
