Answer:
Step-by-step explanation:
if the - in the beggingin is not part of the equation then the answer is a=-\frac{4}{7}
a= -4/7
If it is then the answer is
a=4/7
x=8.9 because when you square it and divide you get 39.6.. rounded to 40.
slope : 4/5
y intercept : (0, -3)