Twenty-eight slices of pizza cost $12. Approximately how much would 70 slices cost?
1 answer:
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Answer:
y = x + 4
Step-by-step explanation:
We are to find the equation of line 1 which passes through point (-4,6)
Line 1 is perpendicular to line 2.
The equation of line 2 is; y = x + 5
The slope of line 2 is
Because the product of two perpendicular line is -1;
The slope of line 1 is -1 ÷ =
Taking another point (x,y) on line 1;
Slope = change in y ÷ change in x
=
y - 6 = (x + 4)
y - 6 = x -
y = -
+ 6
y = x + 4