Direct relationship

In mathematics and statistics, a positive or direct relationship is a relationship between two variables in which change in one variable is associated with a change in the other variable in the same direction. For example all linear relationships with a positive slope are direct relationships. Such direct relationships are very widely used in science and mathematics.

In a direct relationship, as one variable, say x, increases, the other variable, say y, also increases, and if one variable decreases, the other variable decreases. The formula for a direct linear relation is

y = a + kx, where k is positive constant and a is a constant.

See for example temperature conversion, where two temperature scales are typically in a direct and linear relation.

See also

• Contrast with inverse relationship.

This statistics-related article is a stub. You can help Wikipedia by expanding it.v · Categories: Elementary mathematics Mathematics stubs Statistics stubs Wikimedia Foundation. 2010. Игры ⚽ Нужно сделать НИР? Anaglyph Calcaneus Look at other dictionaries: relationship — re‧la‧tion‧ship [rɪˈleɪʆnʆɪp] noun [countable] the way in which people, companies, countries etc that are working together behave towards each other: relationship with/​between/​among • A key to success will be our relationship with our… …   Financial and business terms Relationship — or relationships may refer to: Interpersonal relationship Intimate relationship In mathematics and statistics: Binary relation Causal relationship Correlation and dependence Direct relationship Inverse relationship In database design: Entity… …   Wikipedia Direct Marketing Association (UK) — The UK DMA is a trade organization which seeks to advance all forms of direct marketing. It is based in the United Kingdom, but its members include companies from other countries as well. The DMA promotes direct marketing, informs consumers of… …   Wikipedia Direct holding system — The direct holding system is a traditional system of securities clearance, settlement and ownership in which owners of securities had a direct relationship with the issuer. Investors would either be recorded on the issuer s register or be in… …   Wikipedia Relationship marketing — is a form of marketing developed from direct response marketing campaigns conducted in the 1970 s and 1980 s which emphasizes customer retention and satisfaction, rather than a dominant focus on point of sale transactions. Relationship marketing… …   Wikipedia Direct selling — is the marketing and selling of products directly to consumers away from a fixed retail location. Peddling is the oldest form of direct selling.[1] Modern direct selling includes sales made through the party plan, one on one demonstrations, and… …   Wikipedia Relationship counseling — Intervention ICD 9 CM 94.4 Relationship counseling is the process of counseling the parties of a relationship in an effort to recognize and to better manage or reconcile troublesome differences and repeating patterns of distress. The rela …   Wikipedia Direct Cinema — is a documentary genre that originated between 1958 and 1962 in North America, principally in the Canadian province of Quebec and the United States. Similar in many respects to the cinéma vérité genre, it was characterized initially by filmmakers …   Wikipedia Direct-to-Fan — is a business model used by independent musicians, independent music labels, music marketing professionals, promoters, and others in the music industry. Direct to Fan is also becoming a model used by the broad definition of artists, including… …   Wikipedia direct — di·rect 1 vt 1: to order with authority the testator direct ed that the car go to his niece 2: to order entry of (a verdict) without jury consideration the court direct ed a verdict in favor of the defendant 3: to act …   Law dictionary 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”