Step-by-step explanation:
the slope is always the factor of x.
it is expressed as ratio y/x indicating how many units y changes when x changes a certain amount of units.
parallel means they have the same slope (factor of x).
perpendicular (90 degrees) means x and y trade places upside-down, and the sign is flipped.
so,
10) neither. we have the slopes -2/1 and 1/1.
11) parallel. the slopes -1/2 and -1/2.
12) perpendicular. the slopes 5/1 and -1/5.
16) parallel. special case. all points that have x=4 and x=2. these are 2 vertical lines (parallel to the y-axis also known as x=0).
17) perpendicular. special cases. all points that have y=2 and all points that have x=5. this is one horizontal line and one vertical line, which makes them perpendicular.
Answer:
Carl statement is correct
Step-by-step explanation:
Absolute value is the value of the number without considering the sign of the number.
Absolute value of two integer can be same
example absolute value of -3 and 3
absolute value of |-3| = 3
absolute value of | 3 | = 3
hence, two integer have same absolute value.
so, Carl statement is correct about the absolute value.
Answer:
a. {(0, 7), (-1, 6)}
Step-by-step explanation:
subtract the equations
for , substitute x = 0
for , substitute x = 0