The equation you will use would be <span>40x + 15x =115 </span>
So you would divide 89 by 3, and you should get 29.6
The result is a line perpendicular to y=3x-2
This line has the following equation: y =mx + b, where m = slope
Remember that the product of the slopes of two perpendicular lines is always = -1 (or in other term one is the reciprocal inverse of the other) so the
first slope = 3 and the sope perpendicular to 3 will be - 1/3.
Then the new equation is y = - 1/3(x) + b
How to calculate b? This line passes through (6, 8), that
means (x=6 and y=8) . Plug these values in y = -1/3 (x)+b:3
8=(-1/3)(6) + b;
8= - 2 + b and b = 10
Te final equation is y = - 1/3.x+10 (answer A)
Answer:
m = -2/7
Step-by-step explanation:
We can find the slope when given two points by using
m = (y2-y1)/(x2-x1)
=(4-2)/(-5-2)
=2/-7
= -2/7
