Find the gcf. 12 and 45
a. 12
b. 180
c. 3
d. 45

GCF: 3

Step-by-step explanation:

We are asked to find GCF of 12 and 45.

We know that GCF stands for greatest common factor.

To find GCF of 12 and 45, we will write down factors of our both number and then find out the greatest factor that divides both numbers completely.

Factors of 12: 1, 2, 3, 4, 6, 12.

Factors of 45: 1, 3, 5, 9, 15, 45,

We can see that the greatest number that completely divides both numbers is 3, therefore, 3 is the GCF of 12 and 45.

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)

answ5

step-by-step explanation:

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