The answer is 44 h(-7)= -7^2 -5 =49-5=44
Hello :
<span> a slope intercept equation is : y - b = s (x - a )
passing </span>through <span>the given point A( a , b) and the slope : s when : s×s' = -1
</span>s' : the slope of The other line .
2x+y=400
A=xy area of farmland
y=400-2x
A=400x-2x^2
A'(x)= 400 -4x derivative of area with respect to x
0=400-4x find out where f ' equals 0
4x=400
x=100
A'(x)= 400 -4x
A''(x)= -4 check 2nd derivative. if negative then relative max at x=100
2x+y=400
y=200
dimensions 100x200
hope it helped