Answer:
Second student ran more than the first student.
Student 1= 9,000 cm
Student 2= 20,000 cm
Step-by-step explanation:
X = width
y= length
2x +2y= 324
y = 2x-6
2x +2(2x-6)= 324
2x+ 4x -12=324
6x -12=324
6x= 324+12
6x= 336 /6
x = 56 yards
y= 2x-6
y = 2*56-6
y= 106 yards
Check >>
2x +2y= 324
2*56 +2* 106 = 324
<span>D. Curved line.........</span>
Answer:
K'= (-1,-1)
J'= (-1,-5)
L'= (0,-3)
Step-by-step explanation:
What you do here is, input the (x,y) coordinates into the translation.
For example, the original point K is (-3,5). Insert this into the translation.
(-3,5) → (-3+2, 5-8) = (-1,-3)
Repeat this for the next coordinates of L and J.
J= (-3,3)
(-3,3) → (-3+2, 3-8) = (-1,-5)
L= (-2, 5)
(-2, 5) → (-2+2, 5-8) = (0,-3)
Answer:
C
Step-by-step explanation:
The focus and directrix are equidistant from any point (x, y) on the parabola.
Using the distance formula
= | y - 4 |
= | y - 4 |
Square both sides
x² + (y + 4)² = (y - 4)² ← expand parenthesis on both sides
x² + y² + 8y + 16 = y² - 8y + 16
Subtract y² - 8y + 16 from both sides
x² + 16y = 0 ( subtract x² from both sides )
16y = - x² ( divide both sides by 16 )
y = - x², or
f(x) = - x² → C