Answer:
1) The gradient of a line perpendicular to AB.→ [-2}
2) The equation of the line perpendicular to AB and passing
through the midpoint of AB. →[y=-2x+6]

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Answer:
555 minutes
Step-by-step explanation:
Answer:
y=3x+3
Step-by-step explanation:
9=3(2)+c
9=6+c
c=3
Answer:y=4x+11
Step-by-step explanation:
Substitute the coordinates in each of the above equations,
Then the left hand side of the equation should be equal to the right hand side of the equation.
By substituting the above coordinates in the second answer,
-1= 4(-3)+11
-1=-1
$72.
20% of 60 is 12
$12 + $60 = $72