A line passes through the points (1,4) and (3, 4). Which is the equation of the line?
O
y=-4x+8
O y=-2x + 6
0 x = -1 &x+2
O y=2x + 2

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams