1.solve the system of equations
y=2x^2-3
y=3x-1
a. no solution
b. (-1/2,,-5/2)
c. (-1/2,-5/,5)
d. (1/2,5/,5)
2.how many real numbers solution are there to the equation a=3x^2+x-4
a. 0
b. 1
c. 2
d. 3
3. solve the equation by completing the square
x^2-18x=19
a. 1; 19
b. -1; 19
c. 3; 6
d. -3; 1
4. solve x^-81=0
a. 0
b. -9
c. -9,9
d. 9
5. solve y=-2x^2+2
6. solve y=-x^2
7. solve y=2x^2
8. solve y=3x^2-4
9. graph the quadratic functions y=-2x^2 and y=-2x^2+4 on a separate sheet of paper. using those graphs, compare and contrast the position and shape of the graphs. explain