18 because 15÷0.75 is 20. 20×.90 is 18.
-JZ
Hello!
The equation for slope intercept form is y = mx + b, where m is the slope and b is the y intercept.
We can first find the slope. Perpendicular lines have slopes which are negative reciprocals of each other. This means that the slope of the line you're looking for would be the negative reciprocal of -2/9. The negative reciprocal of -2/9 is 9/2. Therefore, m = 9/2.
Substitute this into the equation. y = 9/2x + b. Now substitute in the point given and solve for b.
y = -4, x = -2
-4 = 9/2 (-2) + b
-4 = -9 + b
b = 5
Therefore, the final equation is y = 9/2x + 5.
Hope this helps!
So your base equation would be y = 15x - 45
(The -45 is the free three months)
Then you would substitute 90 into the y position and solve, so your answer would be 9 months.
Answer: b
Step-by-step explanation:
Answer:
y2-y1/x2-x1
-5+4/6-8
1/2
so the slope we know is 1/2x now we use point slope form for the equation
y+4=1/2(x-8)
y+4=1/2x-4
y=1/2x-4-4
y=1/2x-8
answer = y=1/2x-8
Thank you :)
