In order to reflect an exponential function across the
y-axis, you.
change the sign of the exponent "X"
change the sign of the initial value "a"
take the reciprocal of the initial value "a"
None of these are correct

take the reciprocal of the initial value "a"

Step-by-step explanation:

From my past learning my teacher have taught me this.

If incorrect let me know

Hope this helps

= 5

step-by-step explanation:

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

= (- 3 × 15 ) + 50 = - 45 + 50 = 5