Elise babysat her cousins during her parents' holiday party. The table shows the total earned for each cousin she babysat.

Mathematics

2 answers:

Jet001 [13]2 years ago

5 0

Answer:

C. $49

Step-by-step explanation:

It is going up by $7 each cousin

Sedbober [7]2 years ago

4 0

The correct answer is C. The slope (rate of change) for this table is given by the equation (14-7)/(2-1) which comes out to be 7/1 or 7 meaning that every time x increases by 1, y increases by 7. In other words, Elise earns $7 for each child she baby sits. So 7 children times $7 per child gives you $49.

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3 years ago

You go to an arcade and purchase a card with game credits. After playing 5 games you have 33 credits left. You play 4 more games

Amanda [17]

Answer:

$y=-3x+48$

Step-by-step explanation:

We will use slope-intercept form of equation to write our equation. The equation of a line in slope-intercept form is: $y=mx+b$ , where m= Slope of the line, b= y-intercept.

To write the equation that represents the number of credits y on the cards after x games, we will find slope of our line.

We have been given that after playing 5 games we have 33 credits left. We play 4 more games and we have 21 credits left. So our points will be (5,33) and (9,21).

Let us substitute coordinates of our both given points in slope formula: $m=\frac{y_2-y_1}{x_2-x_1}$ ,