X decreased by the square of nine
x - 9^2 = x - 81
Answer:
70
Step-by-step explanation:
(3x^2-2x+4)+(5x^2+6x-8) - Combine like terms
8x^2+4x-4
(f+g)(x)=8x^2+4x-4
9514 1404 393
Answer:
y = 2x -6
Step-by-step explanation:
The slope is given by the formula ...
m = (y2 -y1)/(x2 -x1)
m = (-4 -2)/(1 -4) = -6/-3 = 2
The y-intercept is given by ...
b = y -mx
b = 2 -2(4) = -6
The equation in slope-intercept form is ...
y = mx +b . . . . . line with slope m and y-intercept b
y = 2x -6
