Chapter 5 - Linear Functions - 5-2 Direct Variation - Practice and Problem-Solving Exercises - Page 302: 10

No. The equation $ y= \frac{10}{9} - \frac{8}{9}x$ is Not In The Form $y=kx$

$8x+9y = 10$ Step 1: Isolate The Term $9y$ $9y = 10-8x$ Step 2: Divide Both Sides By $9$ $\frac{9y}{9} = \frac{10}{9} - \frac{8x}{9}$ Simplify $y = \frac{10}{9} - \frac{8x}{9}$ It is not a direct variation because it is not in the form y=kx and has a constant added.