Katie deposited $700 in a savings account and deposits an additional $50 each week. Glenn deposited $400 in his savings account at the same time, and he deposits an additional $70 each week
Let z represent the number of weeks and y be the total amount saved What system of equations could be used to model this situation?

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step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is