5. What is the slope-intercept equation of the line containing the points (0, 1) and
x242
(4, 3)?
Xi Yi
2
m= 4,4₂
x₁-x2
a. y = 2x + 1
b. y = 2x + 1
c. y = -x + 1
d. y = x + 1
6. Customers can pick their own blueberries at Blueberry Hill. They pay $5 to enter
the patch and $4 per pound for the blueberries they pick. Write an equation to
model the total cost, y, for x pounds of blueberries.
a. y = x(5 + 4)
b. y = 5x + 4
C. y = 4x + 5
d. y = 4(x + 5)
7. If f(x) = 5x-7, what is f(3)?
a. 1
b. 2
C. 8
m-1-3
-0-4
d. 22
+2
4