Answer:
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Answer:
3
Step-by-step explanation:
7 1/2 ÷ 2 1/2
=15/2 ÷ 5/2
=15/2 ×2/5
=3
Answer:
y = 1.5x
Step-by-step explanation:
in the graph you can see that when y=2, x= 3 and this graph is linares (im sorry if its not the right word). so this means for every 3gal of white paint youll need 2 gal of red paint. so 2y=3x: y = 3/2x
Answer:
Step-by-step explanation:
a) Mark any two points in line a
(0,7) ; (5,-3)
Find the slope
slope = y2 - y1 /x2-x1
Equation: y-y1 = m(x-x1)
y - 7 = -2(x - 0)
y - 7 = -2x
y = -2x + 7 --------> line a
c) equation of line b
(2,-1); slope = -2 {as b line is parallel to line a}
y - y1 =m(x-x1)
y -(-1) = -2*(x - 2)
y + 1 = -2x - 2*-2
y + 1 = -2x + 2
y = -2x + 2 -1
y = -2x +1 ------> equation of line b
Graphically, you have to go UP 1 slot (the y axis). You go up because the 1 in 1/5 is positive. If it were negative, it would go DOWN 1 slot. Then, you go to the RIGHT 5 slots because the 5 is positive. If it were negative, you would go to the left. Hope that helps!
