Answer:
Step-by-step explanation:
When a point and the slope of the line are given we use slope - one point form to determine the line of the equation.
Slope and One point form: y - y₁ = m(x - x₁)
where is the point passing through the line and
is the slope of the line.
Point: (-2,2) Slope:
∴ (x₁ ,y₁) = (-2,2) & m =
Substituting we get:
y - 2 =
⇒ 2y - 4 = -5x - 10
⇒ 5x + 2y + 6 = 0
Point: (2,-3) Slope:
y + 3 =
⇒ 2y + 6 = -5x + 10
⇒ 5x + 2y - 4 = 0
Point: (-9,7) Slope:
y - 7 =
⇒ 3y - 21 = 4x + 36
⇒ 4x - 3y + 57 = 0
Point: (2,-7) Slope:
y + 7 =
⇒ 2y + 14 = -5x + 10
⇒ 5x + 2y + 4 = 0
Point: (8,4) Slope:
y + 4 =
⇒ 4y + 16 = 3x - 24
⇒ 3x - 4y -40 = 0
Answer:
Parallel: a and b, p and q, p and r, q and r
PErpendicular: p&a, p&b, q&a, q&b, r&a, r&b
Step-by-step explanation:
Parallel lines have the same slope so both of the lines would be going in the same direction and will never cross each other.
Perpendicular lines cross at a 90 degree angle.
Technically you do not know if q&a and q&b are perpendicular because you do not know if there is a 90 degree angle
19 Students
basically I learned this trick at school, you take the percent, in this case it’s 95/100 and then you write it next to the fraction of what your unit is, so x/20 students
then you multiply 95 and 20 then divide by 100.
I think the answer is X = 110°