First you find the slope using y2-y1/x2-x1
which would be -6 and then to find the y-intercept plug in either (-3,-1) or (-4,-7) in x and y and plug in the slope -6
-1=-6(-3)+b
-1=18+b
-18. -18
-19=b
y=-6x -9
There is a 35% chance the first one will not work, and a 49% the second one will not work. (Theoretically there is an 81% chance neither of them will work.)
You are converting the numbers to a word problem.
1. 5+x = the number five plus x
2. 5-x= the number 5 minus x
3. 5x= five times x
4. 5/x= five divided by x
5. three-fourths of x plus 2
6. two minus three-fourths of x
7. 3 times x plus 10
8. ten times x plus three
Note that a^-3 = 1/a^3
9^3 = 729
1/9^3 = 1/729
Solution: 1/729