Answer:
graphing : Find the intersection points
substitution method : If you have e.g. x+2y=9 and x=3+2y, we can substitute it, (3+2y)+2y=9
elimination method : Make two variables the same, minus them and solve the equation
Step-by-step explanation:
Y=8x-23
y eqauls eight x minus twenty three
Answer:
Median = 72
Step-by-step explanation:
Answer:
x=3+sqrt(2), 3-sqrt(2).
Step-by-step explanation:
x^2-6x+7=0
Apply the quadratic formula
Answer:
Step-by-step explanation:
The equation
