What is the first equation?
Remember perpendicular lines have reciprocal slopes.
So if we have 1/2 we flip to fraction and sign becoming -2.
You then input the point to find the y-intercept.
The answer is C. That would be ur answer
So first, we want to substitute in 15 to all the x variables.
So,
3x - 8y = 5
Becomes
3 * 15 - 8y = 5
Or,
45 - 8y = 5
So here, you can subtract 45 from both sides to move all like terms to one side.
-8y = 5 - 45
And then simplify:
-8y = -40
Then divide both sides by -8
y = 5
The answer to the question What is the ratio of 4.3 is 4:3