Solve the system of equations by graphing. y=-2x+1 y=-5x+4

plot points

y=-2x+1

(0,1)

(1,-1)

plot points

y=-5x+4

(0,4)

(1,-1)

Step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh

the opening of this porabola is facing up

step-by-step explanation: