The area of a triangle is always one half the base b times the height h. If the base is represented by the expression 4x + 2 and the height is represented by 3x, which expression gives the area of the triangle? A. 9x
B.9x^2
C.12x^2+6x
D.6x^2+3x

6 x ^2 + 3 x

Step-by-step explanation:

Area = (Base / 2 ) * Height

(4x+2/2)*3x

Simplify the expression.

6 x ^2 + 3 x

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).