Anyone know what property of mathematic reasoning means "if the lengths are equal the segments are congruent"

examples: transitive property, addition property, subtraction property, substitution property, symmetric property, muiltiplication property, division property, reflective property, angle addition postulate, etc.

1. are the triangles similar and if so why? what is the value of x? show your work.

The only way to identify an intercept is as an ordered pair. true false

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?