Answer:
y=3x+3
Step-by-step explanation:
The y-intercept is at 3.
If you do rise over run, you get 3/1. Simplify to 3. Hope this helps.
If you get confused by logarithms, here's an easier way to think about this problem: What power of 2 equals 128? Well, we know 2^3 = 8, then 2^4 must equal 16. Doubling every times, we get 2^5 = 32, 2^6 = 64 and 2^7 = 128. So, the value of log₂128 is 7.