Just plug in 2 for x since f(x) = f(2)
f(2)=2^2+1
f(2)=4+1
f(2)=5
To find the area of each triangle, you just have to multiply the base(bottom) times the height and then divide your answer by 2. Works for all triangles.
Multiply the top one by 3 for x, so you can eliminate x and find y
then plug in the y into one of the equations to find x
This is a simple subtraction question,
y is a variable, so Jaron could be any age and still be 5 years older than dawn.
lets say Jaron is 20, since he is five years older, we can subtract 5 from 20 and get 15
so
y = 20
d = 15
d = dawn's age
