Question

3) Sam’s pays a flat rate each month of $25 just for having his cell phone. He pays 0.10 for every minute uses his phone. If he only has $45 this month for his bill, how many minutes can he use?

slope = __________
y-intercept = _______

Answer 1

Answer:y=0.10x+25

Y int:45

Answer 2

Answer: y=0.10x+25

Slope=0.10

Y-int=25

Explanation:

0.10 is a changing amount

25 is a constant, no matter how much he uses his phone, he always pays $25.

Plug 45 in for Y:

45=0.10x+25

-25. -25

Subtract 25 and 45

20/0.10=0.10x/0.10

Isolate variable

X=200

Sam can use 200 Minutes this month.