Question

Algebra 1 please help!! 35 points!!!

Jennifer started with 50 dollars in her savings account. Each week she withdrew 10 dollars. The amount of money in her savings account after x amount of weeks is represented by the function f(x)=50-10x. There is no money after 6 weeks.

x intercept:

y intercept:

meaning of x intercept:

meaning of y intercept:

Answer 1

x intercept: 5

y intercept: 50

Explanation:

• let us plot the graph for better understanding.

• we will represent f(x) on y-axis so, the equation will become: y= 50-10x

• the equation is of the form : y=mx+c

[where, m: slope of the line

c : y-intercept ]

• meaning of x intercept: the x-coordinate of the point where the line meets x-axis

• meaning of y intercept: the y-coordinate of the point where the line meets y-axis

• the line y= 50-10x has slope of -10 and it passes through (0,50)

[ (0,50) lies on the line only. substitute and check if the point satisfies the above line equation]

• by seeing the graph in the attachment and by the definitions given above, we can say that,

x intercept: 5

y intercept: 50