Answer:
Q1: $1.2 Q2: 5 pens
Step-by-step explanation:
Answer:
y = -3x + 21
Step-by-step explanation:
(5,6)
y = mx + b
6 = -3 × 5 + b
solving for b
b = 6 - (-3)(5)
b = 21
Therefore,
y = -3x + 21
Answer:
864 squared meters
Step-by-step explanation:
Set up a proportion. The scale between 270 and 360 should be the same as 648 to the fourth yard.
![\frac{270}{360} = \frac{648}{x}\\270x = (360)(648)\\270x = 233280\\x = 864 m^2](https://tex.z-dn.net/?f=%5Cfrac%7B270%7D%7B360%7D%20%3D%20%5Cfrac%7B648%7D%7Bx%7D%5C%5C270x%20%3D%20%28360%29%28648%29%5C%5C270x%20%3D%20233280%5C%5Cx%20%3D%20864%20m%5E2)
Answer:
D. The axis of symmetry is the y-axis.
Step-by-step explanation:
The vertex is at coordinates (0, 3). Since this parabola opens vertically, its axis of symmetry is the x=coordinate of the vertex: x = 0. That is the equation of the y-axis.
The axis of symmetry is the y-axis.