Answer plss!
if the measure of angle 3 is 130 degrees, what is the measure of angle 7? why?

the measure of angle 7 is 130 degrees.

Step-by-step explanation:

The two blue lines are parallel. Therefore, angle 3 and angle 7 are corresponding angles. Corresponding angles are equal. Therefore, If the measure of angle 3 is 130 degrees, then the measure of angle 7 is also 130 degrees.

We can check by the following means:

The sum of the angles on a straight line is 180 degrees. Therefore,

Angle 4 = 180 - angle 3 = 180 - 130 = 50 degrees. Angle 4 and angle 6 are equal because they are alternate angles. Angle 6 and angle 7 are on a straight line. Therefore, angle 7 = 180 - angle 6 = 180 - 50 = 130 degrees

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b