Based on the numbers we have we can assume that she saves 3 times more each week than the last (1*3=3, 3*3=9).
Following this trend we would multiply the amount she saved the third week ($9) by 3 to get $27 for the fourth week.
Then, we would multiply the amount she saved the fourth week ($27) by 3 to get $81 for the fifth week.
Finally, to figure out how much she saved in the 5 weeks, we need to add each value up to get 1+3+9+27+81= $121 saved in 5 weeks
Answer:
y=6x-27
Step-by-step explanation:
To find the slope of a line given 2 points; use this equation.
(5,3) (4,-3)
slope = 6
as for y-intercept use this method in the attachment
below
Put the values you know in the formula and solve for the constant of variation.
.. y = kx^2
.. k = y/x^2 . . . . . fill in values for y and x and compute.
Here, we can formulate the slope-intercept equation from the point and the slope:
Slope = -4/-4 = 1
x1 = -2
y1 = 5
By point-slope form:
(y-y1) = m (x - x1)
(y-5) = 1(x +2)
y-5 = x +2
Simplifying to slope-intercept form:
y = x + 7
Therefore, the slope-intercept form would be y = x+7
I hope my answer has come to your help. God bless and have a nice day ahead!
