We use y=mx+c we know that c= 4 A’s this is the y intercept . Next we need to work out the gradient(m). For every two squares along we go three squares up. This means are gradient is 1.5. Finally we input are values into the equation y=1.5x+4
X^2 + 10X + 21
(X + 3)(X + 7)
The answer is 78 because when you add all the numbers it equals 780 and you need to divide the end sum by the amount of numbers added to get it. So in the end there were 10 numbers added to equal 780 so 780\10 equals 78
I think it's 1/2 because 5/10= 1/2
I hope this helps!
the answer is d (i think) because anything aboveboard .90, whether it is positive or negative
