Math Test

Things I need to know

What is the order of equations to find maximum profit?

revenue, total cost, profit, find q

What is the order of equations to find Y (equilibrium income)

taxes, Yd, C, Y

What is the quadratic formula?

ax²+bx+c=0

what formula do you use when trying to find Q?

Q=-b/2(a)

What is the sequence for Matrix Addition?

add sales matrices, multiply by price column, select correct row

What is the formula for the dexterminant?

ad-bc

What is the inverse matrix formula?

put 1/dexterminant and swap a and d. make b and c negative

What is the formula to solve for unknowns when doing matrix multiplication?

X+(A^-1)B

What is the sequence to find the inverse matrix?

Coefficient matrix → Determinant → Inverse matrix → Multiply by the right-hand column → Read off the answer.