WILL MARK BIANLEAST PLZ PLZ PLZ I REALLIY NEED THIS ASAP Paula keeps track of her heart rate after her workout and graphs her heart rate each week. According to the scatter plot, which number is an estimate of her heart rate after her workout in week 5?

120 beats per minute

110 beats per minute

130 beats per minute

100 beats per minute

120 beats per minute

Step-by-step explanation:

If you look at the plotted points on the graph, you can see that the rate is decreasing at a constant rate. As each week passes, the beats per minute rate drops by 10 beats. Therefore on Week 5, the heart rate will be 120 beats per minute.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

answer:

a=9

step-by-step explanation: lmk if you need a explanation