45 × 13 = 585
Which is exactly how much he'd need to pay back his sister and buy the bike. So, it would take him 13 weeks.
Start by plugging both points within each parenthesis into x and y. Do it interchangeably also!
2(1)+5(1)= 7, which means it isn’t going to prove true. Because 7 isn’t greater than 7.
Since both are 1 it is already interchangeable.
2(-1)+5(4)=-2+20, which is 18. This means the solution doesn’t work, because 7 isn’t greater than 18.
2(4)+5(-1)=8+-5, which is 3. This one must work because 7 is greater than 3!
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Answer:
B, c
Step-by-step explanation:
Answer:
P = (1,4)
Step-by-step explanation:
First turn both equations to slope intercept form (y=mx+b).
5x - y = 1
Subtract 5x on both sides to get -y = -5x + 1, and since we want the y to be positive simply flip all the signs to get
y = 5x - 1.
x + 2y = 9
Subtract x on both sides to get 2y = -x + 9, then divide both sides by 2 to get
y = -1/2x + 9/2.
Now you can graph the two lines and see where they intercept each other. (I graphed them above for you⤴⤴⤴).
Hope this helps :)
The slope between the points (x1,y1) and (x2,y2) is
slope=(y2-y1)/(x2-x1)
(0,6) and (5,-4)
x1=0
y1=6
x2=5
y2=-4
slope=(-4-6)/(5-0)=-10/5=-2
slope=-2