Answer:
The first one, fourth one, and fifth one
Step-by-step explanation:
Area for triangle is A=½bh and those are the only equations that include A=½(_×_).
Given:
A surf instructor has an initial fee of $12 and charges $8 per hour for lessons.
To find:
The y-intercept and its location on the graph.
Solution:
Initial fee = $12
Variable fee = $8 per hour.
Let the total fee be y for x hours. Then,

Put x=0, to find the y-intercept.



Therefore, the y-intercept is 12.
Table of values for
,
x y
0 12
-1 4
Plot (0,12) and (-1,4) on a coordinate plane and connect them by a straight line.
Clearly, the y-intercept is located at (0,12).
Step-by-step explanation:
6y=24-3x
6y/6=24-3x/6
y= 4-1/2x
x= -2y+8
Answer:
f(- 3) = - 3
Step-by-step explanation:
To evaluate f(- 3) substitute x = - 3 into f(x) , that is
f(- 3) = - (- 3)² + 6 = - 9 + 6 = - 3