Hello,
The function is y=4x+8.
We exchange x and y ==>x=4y+8
and we seach y:
4y=x-8 ==>y=(x-8)/4 ==> y=x/4-2
Answer A
The area of a triangle is 1/2(base x height) .
The two legs of this triangle are equal. If you position it properly,
one of them is the base, and the other one is the height.
Since it's a right triangle, A² + B² = C²
But A = B and C = 24 .
2A² = (24)²
A² = (24)² / 2
But since A=B, A² is also (base x height) of the triangle.
Area is just 1/2 of it.
Area = 1/2(24²/2) = (24)²/4 = (24/2)² = (12)² = <u>144</u> .
Simple addition my dear friend. We know that Tina is 5 years older than John. So however old John is, if you ad 5 to that, you get Tina's age. So, 10 + 5 = 15. Tina is 15 years old.
3(x+7)<7(x+2)
Inequality Form: x>7/4
Interval Notation: (7/4, infinity)