2.2: Linear Equations

Question 1

linear function

Answer 1

a function whose graph is a line

Question 2

linear equation

Answer 2

represents a linear function. a solution of a linear equation is any ordered pair (x,y) that makes the equation true.

Question 3

dependent variable

Answer 3

y value, which depends on the value of x

Question 4

independent variable

Answer 4

x value

Question 5

y-intercept

Answer 5

the point at which the line crosses the y- axis

Question 6

x-intercept

Answer 6

the point at which the line crosses the x -axis

Question 7

standard form of a linear equation

Answer 7

Ax + By = C, where A,B, and C are real numbers, and A and B are not both zero

Question 8

slope

Answer 8

the ratio of the vertical change to a corresponding horizontal change

Question 9

point-slope form

Answer 9

when you know the slope and point of a line, you can use this to write the equation of the line

Question 10

slope-intercept form

Answer 10

another form of the equation of a line, you can use this to find slope by examining the equation