Answer:
y=4x
Step-by-step explanation:
slope`:-8-8/-2-2
-16/-4=4
y=4x+c
8=4(2)+c
8=8+C
8-8=c
0=c
Answer:
its A
Step-by-step explanation:
Hope it helps
- Put
x=0, you would get the y-intercept, so you got one point which would be (0,#)
- Put y=0, you got where the graph would
touch\cross\intersect the x-axis, and the other point is (#,0)
to get x-intercept:
y=0:
3x=2 >>
x=2/3to get y-intercept:
x=0:
<span>-6y=2 >>>
y = -1/3</span>
1) First one is a line f(x)=2x+1. It has y-int. (0,1), and second point, for example, (1,3)
2 points for line (0,1) and (1,3)2) Second one is a parabola g(x)=x²+2x-8.
In the vertex form it looks like
g(x) =x²+2x+1-1-8=(x+1)²-9
g(x)=(x+1)²-9 - parabola in the vertex form. Vertex is (-1,-9)Another point of the parabola can be found from the equation g(x)=x²+2x-8.
It is y-int. x=0, g(0)=-8, so
point on the parabola is (0,-8)For parabola Vertex (-1,-9) and point (0,-8)3) Solutions are (-3,-5) and (3,7).