1. The width of a rectangle is 2/3 times its length. If the length is calculated to be 9, what is the value of perimeter for this rectangle?
ⓐ 36
ⓑ 9
ⓒ 12
ⓓ 54
ⓔ 30
2. A line l is parallel to the y-axis and passes through the point (2,3). What is its gradient (m) and x-intercept?
ⓐ m= 0 , x= (3,0)
ⓑ m= ∞ , x= (2,0)
ⓒ m= 0 , x= (2,0)
ⓓ m= ∞ , x= (3,0)
ⓔ m= 2 , x= (0,0)
3. What is the equation of the new parabola created by shifting y = x2 , three units in the positive y-axis direction?
A. y = (x+3)2
B. y = x2
C. y = x2 + 3
D. 3y = x2
E. y = x3
ⓐ A
ⓑ B
ⓒ C
ⓓ D
ⓔ E