Page 1 - 8th Grade EOG Prep ans key
P. 1
Name: _____________________________________________________ Review 1
1. Here is a scatter plot of weight vs age for different Dobermans. The model,
represented by y = 2.45x + 1.22, is graphed with the scatter plot. Here x
represents age in weeks, and y represents weight in pounds.
a. What does the slope mean in this situation?
b. Based on this model, how heavy would you expect a newborn Doberman
to be?
2. What is the value of the expression?
3. The equation of a linear function that passes through the point (3, -1) and
has a slope of -2 can be written in point-slope form as y + 1 = -2(x -3).
Which equation can be used to BEST identify the y-intercept of the linear
function?
