f(-2) means the x value is -2 and you need to find the y value at that point.
At x = -2 the line crosses the y axis at y = 2
f(-2) = 2
Answer:
3/4 times 24 is $18. therefore, adam is paid eighteen dollars an hour
Answer:
Last one:
2 x + 4 y = 6. 3 x minus 4 y = 9.
Step-by-step explanation:
2x + 4y = 6
3x - 4y = 9
4y = 3x - 9
2x + 3x - 9 = 6
5x = 15
x = 3
4y = 3(3) - 9
4y = 0
y = 0
Only one solution, which is (3,0)
Answer:
72y2-45
Step-by-step explanation:
9y2 + 9(7y2 - 5)
you multiply the 9 by the stuff in the parentheses
9y2 + 63y2 - 45
72y2-45
The given figure can be divided in two parts 1) Square with side 7 in 2) A right triangle with base 12 in and height 7 in.
1) Area of square = ![side^{2}](https://tex.z-dn.net/?f=%20side%5E%7B2%7D%20%20)
Side of the square is 7 in.
Area = ![7^{2} =49in^{2}](https://tex.z-dn.net/?f=%207%5E%7B2%7D%20%3D49in%5E%7B2%7D%20%20)
2) Area of triangle = ![\frac{1}{2} .base . height](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20.base%20.%20height%20)
Area of triangle =![\frac{1}{2} (12)(7) =42in^{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20%2812%29%287%29%20%3D42in%5E%7B2%7D%20%20)
Area of polygon= Area of square+ Area of triangle
Area of polygon = 49+42 =91 square in.
Area = ![91in^{2}](https://tex.z-dn.net/?f=%2091in%5E%7B2%7D%20%20)