1st algebra vocab! Word Scramble
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Question | Answer |
slope | the slope m of a nonvertical line is the ratio of the vertical change (rise) to the horizontal change (run) between any two points (x1,y1) y y1y2) on the line |
run | the horizontal change in a line |
rise | the vertical change in a line |
point-slope form | an equation of a nonvertical line written in the form y-y1=m(x-x1) and has a slope of m |
standard form | ax+by=c, where a, b and c are real numbers and a and b are not both zero. |
x-intercept | the x-coordinate of a point where a graph crosses the x-axis |
y-intercept | the y-coordinate of a point where a graph crosses the y-axis |
slope-intercept form | a linear equation written in the form y=mx+b where m is the slope and b is the y intercept of the equation's graph |
family of functions | a group of functions with similar characteristics |
parent linear functions | the function f(x)=x |
parallel lines | two lines in the same plane that don't intersect |
perpendicular lines | two lines in the same plane that intersect to form a right angle |
direct variation | the relationship of two variables x and y if there is a nonzero number a such that y=ax. if y=ax, then y is said to vary directly with x. |
inverse variation | the relationship of two variables a and y is there is a nonzero number a such that y=a/x. if y+a/x, |
best-fit line | the line that most closely follows a trend in data , found using technology |
negative correlation | |
positive correlation | |
regression line | the most accurate best-fit line for a set of data, and can be determined with a graphing calculator |
scatter plot | a graph used to determine whether there is a relationship or trend between paired data |
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