A survey of sports fans reveals that 49 say their favorite sport is football, 35 say their favorite sport is baseball, 11 say th
1 answer:
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Answer:
12
Step-by-step explanation:
The average is calculated as
average = =
=
= 12
Answer:
see explanation
Step-by-step explanation:
Parallel lines have equal slopes
The product of the slopes of perpendicular lines = - 1
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
All the equations given are in slope- intercept form
y = 2x + 1 → with m = 2
y = x - 4 → with m =
y = x + 1 → with m = 1
y = - x - 3 → with m = -
y = 10 + x → y = x + 10 → with m = 1
Thus
y = x + 1 and y = 10 + x are Parallel since both have m = 1
y = 2x + 1 and y = - x - 3 are Perpendicular since 2 × -
= - 1