3 - 2a > 7
We need to solve for a
First, let's subtract 3 on both sides to have the variables on a side and the numbers on another side:
3 - 2a > 7
3 - 2a - 3 > 7 - 3
- 2a > 4
Let's divide both sides by -2 to have a on side and its value on the other side:
-2a > 4
(-2a)/(-2) > (4/-2)
a < -2 (In a case of an inequality, we change the sign when we divide by a negative number to its opposite).
So 3 - 2a > 7 when a < -2 (answer c)
Hope this helps! :D
Answer:
y = -3x + 2
Step-by-step explanation:
First, find the slope using rise over run (y2 - y1) / (x2 - x1)
Plug in the points:
(-7 + 4) / (3 - 2)
-3/1
= -3
Then, plug the slope and a point into y = mx + b to find b:
y = mx + b
-4 = -3(2) + b
-4 = -6 + b
2 = b
Then, plug b and the slope into the equation:
y = -3x + 2 is the equation
The answer is $4.76 !! :)