Direct variation is is when the x and y a direct relation
without constants added or subtracted
With being times by each other
so the only one that meets the definite is the first one
y = 0.5x means y is equal to half of x. So you know that every y is directly related to half of x
Answer:
12 years
Step-by-step explanation:
8 feet = 96 inches
10 feet = 120 inches
96 + 6t = 120 + 4t
2t = 24
t = 12
Step-by-step explanation:
Substitute y = -2 in:
4x - (2 × -2) =8
4x - (-4) = 8
4x + 4 = 8
4x = 4
x = 1
Check:
4x - 2y = 8
4 -2y = 8
-2y = 4
y = -2
