If you want to check if (1,2) is a solution to the system, you have to plug the x and y values back into both equations. If they work for one equation, but not the other, than the coordinates are not a solution to the system.
3(1) - 4(2) = -5
3 - 8 = -5
-5 = -5
2 = 4(1) - 2
2 = 4 - 2
2 = 2
Since both of these checks are true, then (1,2) is a solution to the system.
12 • 4 = 48
25% of his mom's age is benny's age
Answer:
A, y - 3 = -1/2(x + 1)
Step-by-step explanation:
To solve this problem, write each equation in the slope intercept form.
y - 3 = -1/2(x + 1)
Distributing -1/2 across each value in the parentheses, we get y - 3 = -1/2x - 1/2.
Adding 3 to both sides, we get y = -1/2x + 2 1/2.
Now that we have our equation, look at the graph. Is the equation correct? Yes, it is. The y-intercept is 2 1/2, and the slope is -1/2.
Answer: 23692929
Step-by-step explanation:
221.56, because in order to get the area of a circle, you must use this formula: area = (pi divided by 4) x diameter squared.
In this case, area = (3.14 / 4) x (16.8 x 16.8)