Question

A line with a slope of 10 passes through the points (3,9) and (2,a). what is the value of a?

Answer 1

a line with a slope of 10 passes through the points (3,9) and (2,a). what is the value of a?​

step 1

Applying the formula to calculate the slope between two points

m=(a-9)/(2-3)

m=(a-9)/-1

m=9-a

Remember that

m=10

so

10=9-a

a=9-10

a=-1