Unit 1 Practice

Calculate the x-intercept of the line Y = -2x - 8.  Appropriately initialize the value for 'zero'.

Calculate the x-intercept of the line Y = 4x - 7.  Appropriately initialize the value for 'zero'.

A line passes through (2, -3) and (4, 5).  Appropriately initialize values 'm' and 'b' that represent the slope and y-intercept of the line.

A line passes through (2, -3) and (5, -2).  Appropriately initialize values 'm' and 'b' that represent the slope and y-intercept of the line.  Round values to two decimal places.

Find the equation of the line that is parallel to Y = .3x - 5 that passes through (5, 1).   Appropriately initialize variables 'mPar' and 'bPar'.

Find the equation of the line that is perpendicular to Y = -.2x+6 that passes through (-1, 3).  Appropriately initialize variables 'mPerp' and 'bPerp'.

Calculate the intersection point for the lines Y = -2x + 7 and Y = 4x +4.  Appropriately initialize variables 'x' and 'y' that represent the intersection point.

Line J has equation: Y = 4x + 3.  Point K: (3, 5).  Line L is perpendicular to line J and passes through K.  Find the intersection point of Line J and Line L.  Appropriately initialize variables 'x' and 'y' that represent the intersection point.

Suppose an arithmetic sequence has first value = 10 and common difference = 4.

10, 14, 18….

What is the 40th value in the sequence?  Appropriately initialize the value 'value' that represents the 40th term in the sequence.

Suppose the 5th value of an arithmetic sequence is 30 and the 7th value of the sequence is 36. Appropriately initialize the value of 'firstVal' which represents the first value in this sequence. 

Suppose the 5th value of an arithmetic sequence is 30 and the 7th value of the sequence is 36. Appropriately initialize the value of 'value' which represents the 12th value in the sequence.

Suppose the 5th value of an arithmetic sequence is 30 and the 7th value of the sequence is 36. Appropriately initialize the value of 'sum' which represents the 8th value in the series (i.e. the sum of the first 8 values in the sequence).