Look at the first line: y = (3/5)x - 3. What happens if you multiply each term by 5, to eliminate the fraction?
5y = 3x - 3
Compare this to the second equation,
5y - 3x = -10, or 5y = 3x - 10.
The coefficients of x and y (as 3 and 5 here) determine the slope of a straight line. Since 5y = 3x is present in both equations, the two lines MUST be parallel.
y = 4
4y = 6 => y = 6/4
y+4 and y =3/2 are both horizontal lines. Since they are horiz., they are parallel.
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Answer:
12z
Step-by-step explanation:
f=(x) = 4+3z and g(x)= x^2-3.
f= (x)7z
g(x) = x^ 2-3
g(x) =1
(f-g) (2)
7z- 1 (2)
6z ×2
12 z
Answer:
63
Step-by-step explanation:
28/4 = 7 windows per hour
7 × 9 = 63 windows in 9 hours