y - x = 1.
or, y= 1+x
y - 2x = 3.
=>1+x -2x= 3 (substituting the value of y)
=>-x= 2
=>x= -2
y = -2+1 = -1
Therefore, x = -2 and y = -1
No f(x) is the value of a function
Answer:
998.
Step-by-step explanation:
Just get rid of the negative sign
If x = 0 is 1990, x = 1 is 1991, then 1998 is represented by x = 8. Substitute this value of x into the quadratic equation to find y:
y = 0.016*(8^2) + 0.124*8 + 0.787 = 1.024 + 0.992 + 0.787 = 2.803
Therefore, there were approximately 2.803 million SUVs sold in 1998.
F(x)=f(x)=x3+2x2−x−2
0=x3+2x2−x−2
0=(1)3+2(1)2−(1)−2 −−> 1+2−1−2 −−> =0, so 1 works.
0=(−1+2(−1−1)−2 −> −1+2+1−2 −>0 −−> so,
f(x)=(−2)3+2(−2)2−(−2)−2 −> −8+8+2−2 −> 0 So, −2 also works.
make x=0
f(x)=(0)3+2(0)2−(0)−2 ⇒ 0+0−0−2 ⇒ −2. So y−intercept is −2
the x-intercepts are 1, -1 & -2 OR (1,0) (-1,0) (-2,0) and y intercept is -2 OR (0,-2) then you can graph it.