OMG I JUST DID THIS PROBLEM CUZ IM HOMESCHOOLED TOO LEL
#1.
1.2x – 2x + 3y = 1470 – 2x
2.3y ÷ 3 = (1470 ÷ 3) - (2x ÷ 3)
3.y = 490 – 2/3x
4.y = -2/3x + 490
•Slope = -2/3
•<span>y-intercept = 490
#2
</span>›If the slope is -2/3, the line crosses the y axis at
(0,490) and the x axis at (735,0).
›To find the x-intercept, I did:
y = -2/3x + 490
0 = -2/3x + 490
-490 - 490
-490 ÷ -2/3 = -2/3x ÷ -2/3
735 = x
#3
›The equation in function notation would be›f(x) = -2/3x + 490
›<span>The graph of the function represents a line going through points (0,490) and (735,0).
#4
(attached)
#5
</span>›<span>The two graphs of the functions for the two months are similar because they both have a slope of -2/3. Both lines on the graph are going down from left to right and they are parallel. One difference is that each graph has a different y-intercept. One is 531 and the other is 490.
#6
</span>›The equation is: y = -2/3x + 300
›b = 300 (y-intercept)
›m = -2/3 because the line is a negative slope, moving down 2 and over 3.
›This is true because: when x = 450, y = 0 (see below)
›To solve the equation, I did:
›y = -2/3 (450) + 300
›0 = (-2/3 x 450/1) + 300
<span>0 = -300 + 300
</span>
I Got a 100% on it good luck!!!! <span>
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