Answer:1) a. Yes, b. , c. Number of tickets= x, d. Total cost = y.
2) a. Yes b. , c. Weight = x, d. Total cost = y.
Step-by-step explanation:
Answer:
point slope form y+4 = -3(x+1)
slope intercept form y = -3x-7
Step-by-step explanation:
We have a point and a slope, we can use the point slope form for the equation
y-y1 = m(x-x1)
y--4 = -3 (x--1)
y+4 = -3(x+1)
We can also manipulate the equation into slope intercept form
Distribute
y+4 = -3x -3
Subtract 4 from each side
y+4-4 =-3x-3-4
y = -3x-7
The slope of the line is -1.
The y-intercept is 3.
The equation would look like this:
y = -1x + 3
Hope this helps!!
~Kiwi
2x+3y=17 --- 1
3x+6y=30 --- 2
x+2y=10
x=10-2y --- 3
Sub 3 into 1,
2(10-2y)+3y=17
20-4y+3y-17=0
3-y=0
y=3 --- 4
Sub 4 into 3,
x=10-2(3)
x=4
Therefore, Answer is (4,3).