The answer will be a(8b + 7c)
Y = mx + b
slope(m) = -2/3
(-4,1)...x = -4 and y = 1
now we sub and find b, the y int
1 = -2/3(-4) + b
1 = 8/3 + b
1 - 8/3 = b
3/3 - 8/3 = b
-5/3 = b
so ur equation is : y = -2/3x + (-5/3) which can be written as : y = -2/3x - 5/3
Answer:
8.2
Step-by-step explanation:
OK, here is a calculus formula for linear approximation:
f(x) = f(a)+f'(a)(x - a)
a is your approximation, and here we use the value 6, so
f(x) = f(6)+f'(6)(6.2 - 6)
f(x) = 7 + 6(.2) = 8.2
By this formula, your answer is 8.2