Question

Josie currently has $13 and plans to save an additional $7 each week to buy a jacket. She made a table showing the total amount of
money she will have saved for different weeks.
If an equation was written to represent the situation, what would be the y-intercept of the equation?

Answer 1

The equation of the line will be y = 7x +13, using slope form.

What is the slope of line?

Given two line-side coordinates, use the slope formula to determine the slope of the line. The slope is defined as the ratio of the change in the y values to the change in the x values using the formula slope m=(y2-y1)/(x2-x1). x1 and y1 are represented by the first point's coordinates. The second points are located at x2, y2, and their locations. Whichever point you choose to classify as the first and which as the second doesn't matter.

Josie has $13 right now and wants to save an extra $7 per week to buy a jacket.

She created a table outlining the overall sum of money she will have saved over the course of various weeks.

Number of weeks   0   3    5    7

Amount o money   13  34  48  62

We know, $\frac{y-y1}{x-x1} = \frac{y2-y1}{x2-x1}$

Here in the given question  we can put $\frac{y-13}{x-0} = \frac{34-13}{3-0}$

⇒y - 13 = 7x

⇒y = 7x +13

Hence, the equation of the line will be y = 7x +13.

Learn more about Slope, by the following link

https://brainly.com/question/3493733

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