Answer:
hey look up it up it's better
Step-by-step explanation:
Well, a y-intercept is a the point on a graph where the x value equals 0, because the point sits exactly on the y-axis. In this case, the y-intercept would be (0, -9).
3.15
i just used the calculater :)
subtract the exponents:
a^7-2=a^5
