So point slope form is y=mx+b where m=slope and b=y intercept so
in (x,y) form
one solution is x=1 and y=3, also slope is 2 so
m=2
subsitute
3=2(1)+b
3=2+b
subtract 2
1=b
equation is
y=2x+1
tricky answers so simplify them
A: y-1=2(x-3)
distribute
y-1=2x-6
add 1
y=2x-5
not the answer
B: y-3=2(x-1)
distribute
y-3=2x-2
add 3
y=2x+1
correct
the answer is B
Simplifying
2x + -3(3 * 0.6x + 2.7)
Multiply 3 * 0.6
2x + -3(1.8x + 2.7)
Reorder the terms:
2x + -3(2.7 + 1.8x)
2x + (2.7 * -3 + 1.8x * -3)
2x + (-8.1 + -5.4x)
Reorder the terms:
-8.1 + 2x + -5.4x
Combine like terms: 2x + -5.4x = -3.4x
-8.1 + -3.4x
She will have to buy 8 jars for her to make a profit of $214
<h3>How to calculate the profit percent</h3>
If Alissa buys 6 jars of honey for $65, then;
- Cost price = 6(65) = $390
If she sells 5 jars for $72, the selling price will be:
Selling price = 5(72) = $360
If she is to make a profit od $214
Profit = selling price - Cost price
214 = n(72) - 390
72n = 214 + 390
72n = 604
n = 8
Hence she will have to buy 8 jars for her to make a profit of $214
Learn more on profit here: brainly.com/question/19104371
