Aline with a slope of 1 passes through (9,7). what is it’s equation in slope intercept form

y = x - 2

Step-by-step explanation:

Slope intercept form: y = mx + b

Slope is given: 1

(x, y) is given: (9, 7)

Plug in values:

7 = (1)(9) + b

Solve for b:

b + 9 = 7

b = -2

Rewrite the equation:

y = x - 2

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.