Give the linear system 3x + 7y = 20

x - 4y = 9

Identify the values for the elements in the

coefficient matrix.

211 212

A =

121 122

[a

What is the size of the augmented matrix for the linear system?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Which equation shows y= 3 4 x− 5 2 in standard form? a 4x−3y=10 b 3x−4y=10 c 3x−4y=−10 d 4x−3y=−10

Mrs. robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. mr chang bought the same novel at a different bookstore for 10% off its regular price of $25. which person received the better discount?