Which of the following equations has a graph that crosses the y-axis at a point lower than y=2x^2-1
a. y=-3x^2+1
b. y=3x^2-3
c. y=-3^2-1
d. y=-3^2+3

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Given: f(x) = 2x + 5 and g(x) = x2 and h(x) = -2x h(g(f( = x2+ vx+ x + y

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585