Y - intercept/X - intercept:
when talking about y-intercept, you are finding where x = 0, and when finding the x-intercept, you are finding where y = 0.
Here, the y-intercept is -3 (look where x is 0)
Slope:
To find the slope, take any 2 points and use the equation:
Y2 - Y1
————— = m; m is the slope.
X2 - X1
As an example, I will take (1, -1) and (2, 1).
Y2 = 1
Y1 = -1
X2 = 2
X1 = 1
1 - (-1) 1+ 1
————— = ————— = 2/1 = 2
2 - 1 1
2 is the slope.
Or, observe how y always increases by 2 for every x (rise/run)
Equation:
Now, since we found the slope (2) and the y intercept, simply plug in the numbers into the linear equation form (y = mx + b). You should know that m means the slope and b means the y intercept. Meaning the equation is...
y = 2x - 3
Hope it helped :)
Answer:
x = 25.8
Step-by-step explanation:
- Add 7.6 to each side, so it now looks like this: x = 25.8
I hope this helps!
Answer:
$16 for lunch
$4 for coffee
$12 left
Step-by-step explanation:
32/2 = 16
16 * 1/4 = 4
32 - (16 +4) = 12
Answer:
52 + 9 = 68
Step-by-step explanation:
Whenever you multiply or divide an inequality by a negative number, you must flip the inequality sign