Answer:
I think the awsner is 180 deegrees
Slope-intercept form: y = mx + b
(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)
For lines to be perpendicular, their slopes have to be the negative reciprocal of each other. (Basically flip the sign +/- and the fraction(switch the numerator and the denominator))
For example:
Slope = 2 or 
Perpendicular line's slope =
(flip the sign from + to -, and flip the fraction)
Slope = 
Perpendicular line's slope =
(flip the sign from - to +, and flip the fraction)
y = 1/3x + 4 The slope is 1/3, so the perpendicular line's slope is
or -3.
Now that you know the slope, substitute/plug it into the equation:
y = mx + b
y = -3x + b To find b, plug in the point (1, 2) into the equation, then isolate/get the variable "b" by itself
2= -3(1) + b Add 3 on both sides to get "b" by itself
2 + 3 = -3 + 3 + b
5 = b
y = -3x + 5
19 just did this assignment on e2020
Answer:
That would be the point(-2, -1)
Step-by-step explanation:
The graph rises between (-3, -4) and (-2, -1) then falls as it passes through the last 2 points ( y = -1 goes to y= -5 and then to y = -8 as x values move to the right).
1. Answer=66cards
Lets use the variable 'x' to represent the number of baseball cards in Keith's collection that he started with. The following equation can be made.
(x+6)/2=36
multiply both sides by 2
x+6=72
subtract 6 from both sides
x=66 cards
2. Answer=$12
Lets use the variable 'a' to represent Sara's allowance. The following equation can be made:
(a/2)+7=13
subtract 7 from both sides
a/2=6
multiply both sides by 2
a=$12