Answer:

Step-by-step explanation:

Answer:
Slope intercept form is y=mx+b
So y=-1/2x(m=slope which you go down one over 2 from your y-intercept)
y=-1/2x ( There would be no b because your b is 0, that's where it crosses the y axis)
Step-by-step explanation:
2.8a^2=55
a^2=55/2.8
a= square root of 55/2.8