Write the polynomial of least degree with roots -2, 5, and 7.
x^3 - 10x^2 + 11x + 70
x^3 + 10x^2 + 11x - 70
x^3 - 14x^2 + 59x - 70
x^3 + 14x^2 + 59x + 70

step-by-step explanation:

not sure about this one man

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

1/800 is the right answer

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)