Slope, found using the points is -55/11 = -5
We use that for the equation y=mx+b where m=-5. Since we also know one of the points, we can plug that in and find b
-12=-5(4)+b
-12=-20+b
8=b
So the equation of the line is y=-5x+8
Answer:
D
Step-by-step explanation:
Absolute value is the distance from a point 0. Absolute value is always a positibe number, so think of all of these as positive numbers
Answer:
D 9 softball tickets for $72
Step-by-step explanation:
72/9=8
Answer:
1.) a line parallel to the line will have slope 2/3
2.) a line perpendicular to the line will have slope -3/2
Step-by-step explanation:
The slope of parallel lines must always be the same. Therefore, if a line is parallel to y = 2/3x - 4, the other line must have slope 2/3 and not have the same y-intercept (otherwise it would represent the same line).
The slope of perpendicular lines are reciprocals with opposite signs. Basically, if you have one slope of one equation, to find the perpendicular slope you would simply flip the slope over and change the sign.
For example: if the slope was 2/3, the perpendicular slope is flipping 2/3 upside down to get 3/2 and changing the sign from positive to negative = -3/2
12) 2b+8a
13) 17y^2-22y
14) 9m^2n+7mn^2
15) 11y^2
16) 8x^2y