Answer:
a) (-3, -7)
Step-by-step explanation:
a) (-3, -7)
Answer:
solved graphically,
it's just the point where the two lines intersect
If you multiply 2/3 by a product less then 1 you will get a product that is less then 2/3
Answer:
D. N(a) = (a + 20)/3
Step-by-step explanation:
A(n) = 3n - 20
A is a function of n. The inverse will be: N is a function of a.
Change A(n) to y and n to x.
y = 3x - 20
Switch x and y.
x = 3y - 20
Solve for y.
x + 20 = 3y
3y = x + 20
y = (x + 20)/3
Now switch y to N(a) and x to a.
Answer: N(a) = (a + 20)/3
