General equation of the line is
y = mx + c
c = -3
m = 3
so the equation is
y = 3x - 3
Answer:
Step-by-step explanation:
1-4
1
n=30/1
so it would be (t,n) instead of (x,y) respectively
so the first would be (1,30)
2. n=30/2
second would be (2,15)
3. n=30/3
third would be (3,10)
4.
n=30/4
fourth would be (4,7.5)
Answer:
(2,-3)
Step-by-step explanation:
I am not sure if you meant the first equation to be y or -y. I solved it as y.
y = x-5 -x -3y =7
I am going to take the second equation and write it as x =
-x - 3y = 7 Give equation
-x = 3y +7 Add 3y to both sides
x = -3y-7 Multiplied each term in the equation by -1 so that x could be positive
I am going to substitute -3y-7 for x in the first equation up above
y = x - 5
y = -3y -7 - 5 Substitute -3y-7 for x
y = -3y -12 Combined -7-5
4y = -12 Added 3y to both sides
y = -3 Divided both sides by 4.
I now know that y is -3, I will plug that into x = -3y-7 to solve for x
x = -3(-3) -7
x = 9-7 A negative times a negative is a positive
x = 2
