Answer:
y = 4x–5
Step-by-step explanation:
Slope intercept form is y = mx +b. We can rearrange the equation to fit slope intercept form.
–2y = –8x + 10 (we get this by subtracting 8x from both sides)
In order to isolate the y, we divide both sides by –2.
=
+
–2 divided by –2 equals 1, –8 divided by –2 equals 4, and 10 divided by –2 equals 5.
Therefore, the answer is y = 4x–5.
Answer:
The first plan of $49 will be best plan for her.
Step-by-step explanation:
Katherine used 1479 minutes call in the last 6 months.
So, the average monthly call that Katherine made is minutes.
Now, there are two plans for mobile recharge.
One is 250 minutes call time for $49 and the other is 350 minutes call time for $65.
Since 246.5 < 250 and Katherine does not want to spend more for minutes she won't use, then the first plan of $49 will be the best plan for her. (Answer)