Evaluate x(y-z) for x =3 y =9 and z =2

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Step-by-step explanation:

Substitute the given values into the equation.

x(y-z)

x is equal to 3, y is equal to 9 and z is equal to 2. Substitute 3 in for x, 9 for y and 2 for z.

3(9-2)

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction

Subtract inside of the parentheses first.

3(7)

Multiply 3 and 7

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the answer will be

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)