Algebra 1 questions pls help
What is the y-intercept of the graph of the line given by the equation 3y + 4x = 15?
5
4
3
-4/3
Solve the system of equations by substitution
x = -4y
x + 5y = 2
(-8,2)
(8,-2)
(2/9,-8/9)
(-12,3)
Solve the system of equations by elimination
3x + 4y = 31
2x - 4y = -6
(4,5)
(5,4)
(-5,12.5)
(5,-4)

Question

Algebra 1 questions pls help
What is the y-intercept of the graph of the line given by the equation 3y + 4x = 15?
5
4
3
-4/3
Solve the system of equations by substitution 
x = -4y
x + 5y = 2
(-8,2)
(8,-2)
(2/9,-8/9)
(-12,3)
Solve the system of equations by elimination
3x + 4y = 31
2x - 4y = -6
(4,5)
(5,4)
(-5,12.5)
(5,-4)

mathmale · Answer

Please, would you share only one problem per post?  And please, share what you have already done towards solving each problem.

mathmale · Answer

3y + 4x = 15

The x-coordinate of the y-intercept (if there is one) is always zero.  So, set x=0 and solve for y.

Write the y-intercept in point notation:  (0,  ?  )