Linear Functions

Question 0

Linear equation

Answer 0

Graph forms a straight line.

Question 1

Direct variation

Answer 1

A linear function defined by an equation of the form y=mx

Question 2

Parallel lines

Answer 2

Two lines are parallel If they lie in the Sam plane and do not intersect.

Question 3

Perpendicular lines

Answer 3

Lines that intersect and form right angles.

Question 4

Point-slope form

Answer 4

Y- y1 = m(x-x1)

The line passes through the point (x1y1) with slope m.

Question 5

Rate of change

Answer 5

The relationship between two quantities that are changing. The rate of the change is also called slope.

Question 6

Slope

Answer 6

The ratio of the vertical change to the horizontal change.

Question 7

Slope-intercept form

Answer 7

Y= mx + b , where m is the slope of the line and b is the y-intercept.

Question 8

Standard form

Answer 8

Ax+By=C

A,b,c are real numbers and A and B are not both zero.

Question 9

X-intercept

Answer 9

Point where a graph crosses the y-axis

Question 10

Y-Intercept

Answer 10

A point where a graph crosses the y-axis.