Answer:
f'(9) = 6
Step-by-step explanation:
f(x) = 6x+7
The derivative is
f'(x) = 6
Evaluated at x=9
f'(9) = 6
Answer:
I'm doing fine, how are you?
Step-by-step explanation:
Answer:
<h2>y = 9x + 65</h2>
Step-by-step explanation:
To find the equation of the line given the slope and a point we use the formula

where
m is the slope
( x1 , y1) is the point
From the question the slope is 8 and the point is ( - 9 , - 7)
Substitute the values into the above formula and solve for the equation
We have

We have the final answer as
<h3>y = 9x + 65</h3>
Hope this helps you
Answer:
Sort out which is which then divide or multiply
Step-by-step explanation:
y² = 8y - 15 (alternate angles are equal)
y² - 8y + 15 = 0
(y - 5)(y - 3) = 0
y = 5 or 3
x + 8y - 15 = 180 (angles in a straight line add up to 180)
when y = 5
x + 40 - 15 = 180
x = 155°
when y = 3
x + 24 - 15 = 180
x = 171°