What is the y-intercept of the function f(x) = -2/9x + 1/3

Question

marco0506 · Answer

the options

kendallstout6 · Answer

-2/9, -1/3, 1/3, 2/9

kendallstout6 · Answer

What is the slope of the line represented by the equation y = -2/3 - 5x?

kendallstout6 · Answer

Grace is comparing cell phone plans. A prepaid phone plan costs $0.20 per minute and has no monthly fee. A contracted phone plan costs $50 per month and $0.02 per minute. How will the graphs of the monthly costs of the two cell phone plans compare where x represents minutes purchased in a month?

Echofire · Answer

The y-intercept is the y-value where x = 0 and so the answer would be quite simple. Perhaps it would be 1/3 so no need to know all the options since you have the answer.

Echofire · Answer

Next, the slope of that line is the coefficient of the variable x so you should get -5. There is a negative sign in front of that number.

Echofire · Answer

For Grace comparing cell phone plans, make two equations of the two plans and post what you got. If it is correct, you can graph or solve them to see the point they intersect to answer the question.