The value of Sarah's car is decreasing by a consistent amount each year. The value of her car can be modeled by y=18000 - 1500x. What is the y-intercept and its meaning?

What is the slope and its meaning?

How long will it take for the value to be $7500?

What will the car worth in 11 years?

1.) The y-intercept is 18000 which is the original price of her car

2.) The slope is -1500 which is how much her car's value decreases by one year

3.) 7 years

4.) $1500

Step-by-step explanation:

For questions 1 &2 the equation is written in slope-intercept form which is y=mx+b

m=slope

b= y-intercept

For questions 3 &4 I wrote the equation in my calculator and look at the table to find the answers

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step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.