Ok so the formula they gave you is in the form y=mx+b. What's different however is that they say the graph is translated up 6 units. So the formula f(x)=-4x-2 becomes f(x)=-4x+4 (since b represents how high the graph is). And to find any y intercept, you must make X zero, and -4(0) +4 is now equal to 4 and 4 is your answer
4/10 and 4/100 are the same because all you had to do was multiply both the numerator and denominator by 10. It is still the same amount. Hope this helps!
