Slope for an Equation

A camp charges families a fee of $625 per month for one child and a certain amount more per month for each additional child. Use the graph to write an equation in slope-intercept form to represent y, the amount a family would pay, with x additional children.

• y = 625x + 225

• y = 225x

• y = 225x + 625

• y = 625

Which statement correctly describes the graph?

• The lines are parallel because they have different slopes.

• The lines are NOT parallel because they have different y-intercepts.

• The lines are parallel since they have the same slope and different y-intercepts.

• The lines are perpendicular.

Parallel Lines have equations with equal slopes and different y-intercepts.  TRUE OR FALSE

• TRUE

• FALSE

Given the equations below determine if they are parallel or not.  y = 4x - 2 and   y = 5 + 4x

• Yes, They are parallel

• No, They are not parallel

A second linear equation is graphed next to the equation y = 5x + 10. Which of the following could represent the slope and y-intercept of the line if the 2 lines are parallel?

• m = 10, y-int: (0, 5)

• m = 5, y-int: (0, 10)

• m = 5, y-int: (0, 4)

• m = 2, y-int: (0, 5)

Graph. y = 2/3x - 3

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• 
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Write the equation in slope-intercept form: 5x - 2y = 12

• y = 5/2x - 6

• y = -5/2x - 6

• y = 5x +12

• y = -5x + 12

What is the slope of the line that is perpendicular to the line y = -5x + 3?

• 5

• 1/5

• -1/5

• -5

Write an equation of a line perpendicular to
y = 2/7x - 5 through (2, -3)

• y = -7/2x + 4

• y = -4x - 7/2

• y = 4x - 7/2

• y = 7/2x + 4

Write an equation for a line that is perpendicular to the graph shown and passes through the point (4,-1)

• y = 2x + 3

• y = 1/2x - 3

• y = 1/2x - 1

• y = -2x + 1