Question

Three friends, Nolan, Scarlett, and Zahra are saving different amounts of money each week. Nolan started with $40 and added $12.50 every week. Scarlett's savings are represented by the table below, and Zahra's savings are represented by the graph below.

Answer 1

ITS B

Explanation:

ITS CORRECT I DID IT

Answer 2

An option that sorts the three friends in order from least to greatest dollar amount saved per week is: C. Scarlett, Nolan, Zahra.

In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;

y = mx + c

Where:

• m represents the slope or rate of change.
• x and y are the points.
• c represents the y-intercept or initial value.

Note: There are 7 days in a week.

Since Nolan started with $40 and added $12.50 every week, a linear equation that models the situation is given by;

y = mx + c

y = 12.50x + 40

When x is 7, the total savings is given by;

y = 12.50(7) + 40

y = $127.50

For Zahra, her total savings can be modeled as follows;

Slope (m) = (193 - 113)/(9 - 5)

Slope (m) = 20

By using the point-slope form, a linear equation that models the situation is given by;

y - 113 = 20(x - 5)

y = 20x + 13

When x is 7, the total savings is given by;

y = 20(7) + 13

y = $153.00

For Scarlett, his total savings can be modeled as follows;

Slope (m) = (125 - 90)/(6 - 4)

Slope (m) = 17.5

By using the point-slope form, a linear equation that models the situation is given by;

y - 90 = 17.5(x - 4)

y = 17.5x + 20

When x is 7, the total savings is given by;

y = 17.50(7) + 20

y = $142.50