If the area of the triangle is 84 in2, what is the value of x?

m∠a is 90°

m∠b is 40°

but there’s no any figure there!

write out the polynomial, with leading coefficient 1:

y = 1 (x+2)^1 (x-7)^1 (x-5)^2

next time, share the answer choices.   .

slope intercept form is y = mx + b