A) x / y = 3 / 5
A) 5x = 3y
A) 5x - 3y = 0
B) y - x = 6
B) 3y -3x = 18
Adding A) and B)
2x = 18
x = 9
y = 15
Answer:
C
Step-by-step explanation:
The 3 is directly outside the parentheses, meaning you need to distribute the 3 to the x and the 4 because they are inside the parentheses. There is no addition, subtraction, or division involved in this so C is correct.
Answer:
C
Step-by-step explanation:
C! All you have to do is substitute the numbers into the problem!
The slope intercept form is the y = mx + b
We need to solve for the slope first
remember
the slope is the change in y/ over the change in x
y2 - y1 / x2 - x1
3 - 5 / -3 --9
-2/6 this can be simplified to -1/3
That is the slope so we plug it into the equation
y = mx + b
m = slope
y = -1/3x + b
Now to solve for the y-intercept, we plug in one of the coordinates to solve for b
3 = -1/3(-3) + b
3 = 1 + b
3 = b + 1
subtract 1 from both sides
2 = b
That is the point where it intercepts the y-axis
(0,2)
Now we have our equation for the line that passes through the points, (-9,5)(-3,3).
That equation is y = -1/3x + 2
Hope this helps :)