What is the formula for finding the slope of a line?
a point and a slope!
A recording studio charges musicians an initial fee of $50 to record an album. Studio time costs an additional $75 per hour. Write a linear model that represents the total cost of recording an album as a in terms of studio time (in hours).
y=75t+50
Write the equation of the line that passes through point (2,1) with slope -4.
y= 1 - 4(x-2)
You pay a processing fee and a daily fee to rent a beach house. The table shows the total cost of renting the beach house for different number of days.
Can the situation be modeled by a linear equation? If yes, write a linear equation that represents the total cost as a function of the number of days spent at the beach house.
y= 102x+42
A line has a slope of 3 and a y-intercept of 6. Write the equation of the line.
y=3x+6
Write the equation of the line that passes through the points (-3,-2) and (-1,-1).
y=-2 + (1/2)(x+3) OR y = -1 + (1/2)(x+1)
Describe and correct the error in writing an equation of the line that passes through the point (4, -5) and is perpendicular to the line
Perpendicular lines have an opposite reciprocal slope, not just reciprocal.
Write the equation of a line that passes through the points (0,3) and (-6,3).
y=3
Write the equation of the line that passes through the points(5,-6) and (-2, 8).
y=-6 - 2(x-5) OR y=8 - 2(x+2)
A city water department is proposing the construction of a new water pipe, as shown. The new pipe will be perpendicular to the old pipe. Write an equation that represents the new pipe.
rate of change, change in y over change in x, steepness,
Write the equation of the line that passes through the two points (0, 10) and (20,5).
y=(-1/4)x+10
What is the slope of the line that passes through (-3, 1) and (13, 5).
1/4