Linear relationships

Front

What does 'b' stand for in the slope-intercept equation y=mx+b?

Back

y-intercept

Front

How do you find the slope from a table of values?

Back

Calculate the change in y divided by the change in x between two points.

Front

Write the equation in y = mx + b form for the total cost of x pounds of fruit if Lee charges $3 for a basket and $2.50 per pound.

Back

y = 2.50x + 3

Front

What is the slope in the equation y=3x+5?

Back

3

Front

If a line has a slope of 7 and passes through the point (4,40), what is the equation of the line?

Back

y = 7x + 12

Front

What is the definition of slope in a linear relationship?

Back

The slope is the ratio of the vertical change to the horizontal change between two points on a line.

Front

What does the term 'linear relationship' mean?

Back

A relationship between two variables that can be represented by a straight line on a graph.

Front

How do you determine if a relationship is linear from a graph?

Back

If the graph forms a straight line, the relationship is linear.

Front

What is the formula for slope (m) using two points (x1, y1) and (x2, y2)?

Back

m = (y2 - y1) / (x2 - x1)

Front

What does the term 'y-intercept' refer to in a linear equation?

Back

The y-intercept is the value of y when x is 0.