Answer: a is 2.2, b is 0.55
Explanation:
To find the x intercept, put 0 instead of y,
hence,
0=-0.25x+0.55
-0.25x=-0.55
x=2.2
To find y intercept put 0 instead of x,
so,
y=-0.25*0+0.55
y=0+0.55
y=0.55
Can you provide a picture?
I think you mean,

You can use the usual formula,

That in this case is,

Where I have used,
Answer:
Option D, n > 3.5
Step-by-step explanation:
<u>Step 1: Solve for n</u>
7n + 4 + 3 - 7n < 9n – 3 + 3 - 7n
7 / 2 < 2n / 2
3.5 < n
n > 3.5
Answer: Option D, n > 3.5