4. Calcular la medida del ángulo A de un triángulo ABC tal que: a’(b-c)=b - c a. 30°
d. 120°
b. 60°
e. 150
C. 90°

Which equation could represent the relationship shown in the scatter plot? y=−3x−2 y=−3/4x+10 y=−2/3x+1 y=9x−12 scatter plot with x axis labeled variable x and y axis labeled variable y. points go from upper left to lower right.