Y=7x+6
4x-3y=16
Useing substetution method

(-2,-8)

Explanation:

4x-3(7x+6) =16

4x-21x-18=16

-17x = 34

-17      -17

x = -2

y=7(-2)+6

y=-8

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!