What is the equation of the line graphed below?

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Which of the following vectors are orthogonal to (2,1)? check all that apply