 Features of function Graphs 2175forals.com Topical synopsis | Algebra 1 overview | MathBits\" Teacher sources Terms of Use call Person: Donna Roberts The features of a role graph can show us many facets of the relationship represented by the function. Let\"s take a look at the more popular graphical features. Be sure to pay attention to the vocabulary and the notation provided in this section. Intercepts are the places (points) whereby the graph the cross (or touches) either the x-axis or y-axis.
• To find the y-intercept, collection x = 0, and also solve because that y. Remember: the y-intercept will have actually an x-coordinate of 0. y = f (x) = -2x + 2 y = -2(0) + 2; y = 2 y-intercept: (0,2) (Yes, you can also read the y-intercept, b, from the duty equation if it is in y = mx + b form.) • To find the x-intercept, set y = 0, and also solve because that x. Remember: the x-intercept will have a y-coordinate the 0.

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y = f (x) = -2x + 2 0 = -2x + 2; 2x = 2; x = 1 x-intercept: (1,0)   y-values hopeful ory-values negative • The optimistic regions of a role are those intervals where the function is above the x-axis. that is where the y-values are optimistic (not zero). • The negative regions the a role are those intervals whereby the role is below the x-axis. it is whereby the y-values are negative (not zero). • y-values that are on the x-axis space neither confident nor negative. The x-axis is where y = 0.See more: What Is The Typical Relationship Between Time And Interest Rate? A Vings

Some attributes are positive over their whole domain (All y-values above the x-axis.) positive: -∞ or \"all Reals\", or (-∞,+∞)
Some features are an adverse over their entire domain. (All y-values listed below the x-axis.) negative: -∞ or \"all Reals\", or (-∞,+∞) positive: x > 0 or (0,+∞) negative: x or (-∞,0) (do not incorporate zero)  The conversation on this page will describe \"strictly\" increasing and \"strictly\" decreasing.
When trying to find sections that a graph the are boosting or decreasing, be sure to look in ~ (or \"read\") the graph from left come right.