What is the measure of a

Step-by-step explanation:

Hello There!

This is a 30 - 60 - 90 special right triangle

a is equal to 9 divided by the square root of 3

so we can conclude that the answer would be

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

b.-4 units

all you   do is count how many times you move