The correct answer for the exercise shown above is the first option and the las option, which are:
<span>y = 3x + 20
3x - y = -20
</span>
The explanation is shown below:
1. You have the folllowing expression given in the problem above:
y-2=3(x+6)
2. If you solve it for y, you have:
y-2=3x+18
y=3x+18+2
y=3x+20
3. And if you move the variables to the left member, you have:
3x-y=-20
Therefore, as you can see, the correct answer are the options mentioned above.
A1 = 3 and an = an − 1 − 3
a1 = 2 and an = an − 1 + 0.5
Answer:
since the unknown amount can buy 100 pencils
he bought 70 pencils
therefore $4.50 can buy 30 pencils
so 1 pencils cost $4.50 /30=0.15
Nina's truck holds more, because Brent's pick-up holds 1/5 a ton, and a ton is 2000 pounds, so 2000 x 1/5 is 400, and is less than Nina's truck.
Answer:
C. y = 2x² +8x +6
Step-by-step explanation:
Reflecting f(x) across the y-axis changes the sign of x, so the new function is ...
f(-x)
Vertical scaling by a factor of "a" multiplies the function value by "a", so the new function is ...
a·f(x)
Doing both gives you ...
y = a·f(-x)
y = ax² +4ax +3a
None of the answer choices look like this. However, they match this if a=2:
y = 2x² +8x +6