If the tangent line to y = f(x) at (7, 5) passes through the point (0, 4), find f(7) and f '(7).

The equation of tangent line to y=f(x) at point is

In your case the tangent point is (7,5), then and the equation of tangent line is

This tangent line passes through the point (0,4), then the coordinates of this point satisfy the equation:

-10i^2-4i

step-by-step explanation:

evaluate for p=2,q=5i

(2−4)(2+5i)i

(2−4)(2+5i)i

=−10i2−4i

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5