Tinuity MS Grade 8 Pre-Algebra Qtr. 4 (SY19-20) UPDATED
EMEF
Calculating an Interpolated Data Prediction
Chester used the regression equation of the weight loss plan to make a prediction within the given data range.
Complete his work to calculate the number of weekly hours of aerobic activity needed for a monthly weight loss of 3
pounds. Round to the nearest hundredth.
1. Regression equation: y = 1.178x + 0.71
2. Substitute 3 fory:
3 = 1.178x+0.71
3. Subtract 0.71 from both sides: 2.29= 1.178x
2.29 1.178
4. Divide both sides by 1.178: 1178 = 1178*
About
hours of weekly aerobic activity will result in 3 pounds of monthly weight loss.