Question

oliver starts with 10 dollars in his account. he earns 5 dollars per hour working at a store and deposits the earnings into his account. leo starts with -15 dollars in his account. he earns 5 dollars per hour working at a store and deposits the earnings into his account.
what do the vertical intercepts mean in this situation?
oliver: ( d = 10 + 5x )
the slope of oliver’s line is 5.
the vertical intercept of oliver’s line is 10.
leo: ( d = -15 + 5x )
the slope of leo’s line is 5.
the vertical intercept of leo’s line is -15.
oliver earns $10 per hour and leo earns -$15 per hour.
oliver started with $10 in his account and leo started with -$15 in his account.
oliver always has 10 times as much money as leo.

Explanation:

In linear equations of the form $d = mx + b$, the vertical intercept ($b$) represents the initial value when the independent variable (hours worked, $x$) is 0. For Oliver's equation $d=10+5x$, the intercept 10 is his starting account amount. For Leo's equation $d=-15+5x$, the intercept -15 is his starting account amount.

Answer:

Oliver started with $10 in his account and Leo started with -$15 in his account.