Tell whether the equation represents direct variation. If it does, give the constant of variation.
1. y = - 3x 2. 2y – 6= 0
3. -6x + 4y = 0

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes