Slopes
Miscellaneous
Y-Intercepts
Parallel and Perpendicular I
Parallel and Perpendicular II
100
What is the slope of the line
y = mx + b
slope = m
100
True or False:
Slope = Run / Rise
False;
Slope = Rise / Run
100
What is the y-intercept of the line
y = 34x + 18
18
100
Are these two lines parallel?
y = (3/2)x - 1
y = (3/2)x - 2/3
True;
Same slope, which is 3/2
100
Draw a line perpendicular to L that goes through point X.
200
What is the slope of this line?
-4/3
OR
4/-3
200
Simplify the equation:
y = 3x - 0
y = 3x
200
What is the y-intercept of the line
y = 3x - 1
-1
200
Suppose line A is perpendicular to line B and line B is perpendicular to line C. What is the relationship between A and C?
200
True or False:
If line B has a slope of -5/8, then a parallel line to B has a slope 8/5.False;
Parallel lines have the same slope.
Negative reciprocal is for a perpendicular line.
300
What is the slope of the line
y = x - 18/5
1
300
True or False:
The second number in the equation for a line is always the y-intercept.False;
What about y = 1 + 2x
300
What is the y-intercept of the line
y = -21x - 2/3
-2/3
300
True or false:
A perpendicular line has a slope that is the reciprocal of the original.
False;
It is the negative reciprocal: a/b --> -b/a
300
How many possible lines exist that are both parallel to L and intersect point X?
1
400
What is the slope of the line:
y = -x - 100
-1
400
True or False:
The slope of y = 4x - 3x + 1 is 1.
True;
It simplifies to y = 1x + 1, so the slope is 1.
400
What is the y-intercept of the line
y = (-3/2)x
0
400
DAILY DOUBLE (worth 800):
If the line A has the equation y = b + mx, what is the slope of a line perpendicular to A?
-1/m
400
True or False:
Every pair of parallel lines have the same slope.
False;
Vertical lines don't have slopes!
500
What is the slope of the line
y = 18x - 3 + x
19
500
In the equation 2y = 3x,
when x = 6, the value of y = ?
y = 9
2(9) = 3(6) = 18.
500
What is the y-intercept of the line
y = -3 + 1 + 18x
-2
500
If a line has the equation y = 1/3 - x*7,
what is the slope of a line perpendicular to it?
1/7
500
Daily Quadruple (worth 2000):
What is the slope of a line perpendicular to a line with this equation:
y = (13/3)x - (1/2)x + 11.1
-6/23