Linear Relations
A linear relation of the form y = mx is said to be a _____ variation.
Direct.
What is the slope of the line:
y = -3x - 5
-3
Lines that are parallel have ____ slopes.
The same.
Lines will always intersect if the have _____ slopes.
Different.
A trinomial
A linear relation of the form y = mx + b is said to be a _____ variation.
Partial.
What is the slope of the line:
-2 - 5y = 3x
-3/5
Lines that are perpendicular have ____ slopes.
negative reciprocal.
Lines that are ______ will never intersect.
Parallel.
The number multiplying a term in a polynomial is called a:
Coefficient
Which of the following is NOT equivalent to the slope of a line:
A) The rise over run
B) The variation in x over the variation in y
C) The rate of change of y with respect to x
B
What is the x-intercept of the line:
2y - x = 13
-13
1/2
Would it be easier to solve the following system with substitution or elimination?
2x - 3y = 2
y = 5x + 9
Substitution.
The degree of a a term in a a polynomial is:
The sum of the exponents on any variables
Convert this line from standard form to slope-intercept form:
2y + 4x + 7 = 0
y = -2x - 7/2
Which of the following is NOT sufficient information to graph a line:
A) the equation in slope-intercept from
B) Two points on a line
C) The change in y, and the change in x
C
Lines that are parallel to y = -4/3x + 9 will have slopes of ____.
3/4.
Solve the following system for x:
2y = 4
x - y = 7
x = 9
The name for a term in a polynomial with no variables.
Constant.
A linear relation can be defined as a polynomial of degree __ or __.
0 or 1.
A) x = 5
B) x = y
C) Y = 0
C
True or false: Vertical lines have an undefined slope because the change in run is zero, and dividing by zero is not allowed.
True.
True or false: Lines that are overlapping have no solutions because any point will on one line has no corresponding point on the overlapping line.
False.
Degrees