The smallest angle of a triangle is measure x degrees. The second angle is 45 degrees more than the smallest angle. The third angle is three times larger as the smallest angle. Write algebraic expression to express measures of the second and third angles of the triangle.

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Step-by-step explanation:

Point 1 is (21,3); Point 2 is (12,6)

The general equation for the slope-intercept form is

where m is the slope. To compute for the slope,

To determine the y-intercept, we replace x and y with values from any of the two points. In this case, I'll use P1.

b = 10

Thus, the slope-intercept form is

The general equation for the point-slope equation is

Substitute any of the points. In this case, I'll use P2, just to be different. It would yield the same answer when you simplify it:)