Question

PLEASE HELP!!! PERFORMANCE TASK FOR MATH. WILL MARK YOU BRAINLIEST

Answer 1

A.) If Grace and Claire’s parents each invested $7,600 into a college savings account when the girls were born, how much money will each girl have for college when she turns 18? Explain.

Answer/Explanation:

For Grace, I plugged in 18 for x.

Work:

y= 1000(18) + 7600

y= 18000 = 7600

y= 25600

For Claire, I had to first find the slop by using rise over run.

11600-10000/3= 800

So the formula for Claire is y= 800x + 7600 and then you just plug in 18 for x.

Work:

y= 800(18) + 7600

y= 14,400 + 7600

y= 22,000

Therefore, Grace would have $25,600 at the end of 18 years old and Claire would have $22,000 when she turns 18 years old.

                 I hope that helped you or anyone else!! :)

Answer 2

A) using y=mx+b find the slope between two points given (y2-y1) /(x2-x1) which will be the m value. The b value is the y intercept, i.e. the y value when x is 0 or the amount of money when they are born. After finding m and plugging in 7600 for b, substitute 18 for x since that is the age. Then solve for y=slope(18)+7600 and y will be the the amount of money at 18.

B) positive correlation. The slope is positive, i.e. The money is increasing with time, not decreasing.