Which of the following is the missing justification? Step Justification
three plus one third times x equals seven Given
one third times x equals four
x = 12 Multiplication Property of Equality

Distributive Property
Addition Property of Equality
Subtraction Property of Equality
Division Property of Equality

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

Mr. rose asked his students to draw a quadrilateral with 4 unequal sides. draw an example of this kind of quadrilateral.