y-intercept -3
slope 1/2
is sufficient info with which to write an equation for a straight line:
y = mx + b becomes y = (1/2)x - 3.
You should check this by determining whether or not (2,-1) satisfies this equation.
6.45kg convert it to grams is equivalent to 6450 grams. multiple the mass value by 1000
AB is 6 because of the definition of a midsegment 1/2(12)