Jennifer started with $50 in her savings account. Each week she withdrew $10. The amount of money in her savings account after x weeks is represented by the function f(x) = 50 - 10x. Find the intercepts
Mathematics · High School · Mon Jan 18 2021
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Given the statement:
Jennifer started with $50 in her savings account. Each week she withdrew $10. The amount of money in her savings account after x weeks is represented by the function f(x) = 50 - 10x.
Find the intercepts
Solution:
We can find the x and y intercepts separately. To find for the x intercept we equate y to 0 and solve for x, to find for the y intercept, we equate y to 0 and solve for y.
y = 50 - 10x
0 = 50 - 10x
10x = 50
10x/10 = 50/10
x-intercept = 5
y = 50 - 10(0)
y -intercept = 50
Final answer:
x-intercept = 5
y -intercept = 50