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 a line to be perpendicular to another line, the slope has to be the negative reciprocal of the original line's slope.
For example:
Slope(m) = 
Perpendicular line's slope: 
or -2 [positive to negative]
m = 
or -3
Perpendicular line's slope: 
[negative to positive]
y = -x + 3
m = -1 So the perpendicular line's slope is 1, now plug it into the equation
y = mx + b
y = x + b To find b, plug in the point (3, 1) into the equation
1 = 3 + b Subtract 3 on both sides to get b by itself
1 - 3 = 3 - 3 + b
-2 = b The y-intercept is -2
If t is a variable, then the answer would be
<u><em>t = 50 + 75x</em></u>
Answer:
yes
Step-by-step explanation:
Answer:
$3.05
Step-by-step explanation:
Backpack=$18.70
6 note books=x
Sales tax=6%
Total cost=$39.22
18.70+x+0.06(18.70+x)=39.22
18.70+x+1.122+0.06x=39.22
19.822+1.06x=39.22
1.06x=39.22-19.822
1.06x=19.398
x=19.398/1.06
=18.3
x=$18.3
6 books=$18.3
Each book cost=18.3/6
=$3.05
The answer to this question is 19,250 pounds of pumpkins sold in 7 days. This is true because to find the answer you just have to multiply the pumpkins that sell every day and the days it asking for. Equation 2,750 pounds*7=19,250 pounds.
I hope this helps you!
