All in VA: Slope and Linear Functions

What is Point-Slope Form of linear equations?

• Ax+By=C

• y = mx+b

• y-y1=m(x-x1)

• m = (y2-y1)/(x2-x1)

The ___________ is the point where a line crosses the x-axis.

• y-intercept

• x-intercept

• domain

• range

A ________ function is the simplest form of a family of functions.

• father

• linear

• simple

• parent

What is the slope in y=mx+b

• y

• m

• x

• b

What is the y-intercept in y=mx+b

• y

• m

• x

• b

What are parallel lines?

• lines that have the same slope

• lines that have opposite slopes

• lines that have reciprocal slopes

• lineas that have opposite reciprocal slopes

What are perpendicular lines?

• lines that have the same slope

• lines that have opposite slopes

• lines that have reciprocal slopes

• lines that have opposite reciprocal slopes

When every y value in a relation has exactly one x value, this is called a ____________.

• function

• relation

• one-to-one function

• one-to-one relation

Which linear function has a greater slope?

• Function 1

• Function 2

• They have the same slope.

This graph shows the amount of weight Lucy lost over a 5-week period. What does the slope of this graph represent?

• number of weeks

• weeks per pound lost

• pounds lost per week

• maximum number of pounds lost