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Ms. Menegay Vocab Terms

parent function all linear functions will be compared to the parent function y=x, where m=1 and b=0
direct variation “varies directly” any linear function that goes through the origin has a constant of proportionality y=kx (k is a special name for slope because it is a constant).
parameter change any change that is made to the slope (m) or y-intercept(b) in comparison to the parent function y=x. The change can affect the m or b, or both. This is known as a transformation.
linear function has a constant rate of change, graphs as a line.
Slope-intercept form of a line y= mx +b, where m is the slope and b is the y-intercept.
Standard Form of a line Ax + By= C, A and B are integers, graph using intercept method
Point-Slope Form of a line This is used to write an equation in slope-intercept form if you are given a slope and point.
Rate of change or slope change in y over change in x OR rise over run
y intercept where a function crosses the y axis known as b (0,y)
x intercept where a function crosses the x axis (x ,0)
zero of a function any function f(x)=0, this would be your x-intercept, when y=0.
function notation written as f(x), “f of x”, same as y
linear inequality ex: y>x, all points greater than the line of y=x satisfies that inequality, a shaded region on a graph.
Created by: bmercer