# Algebra

How many real number solutions does the equation have?

y=-4x^2+7x-8

A. no solutions
B. one solution
C. two solutions
D. infinitely many solutions

I think it is C..?

How many real number solutions does the equation have?

y=2x^2-20x+50

A. no solutions
B. one solution
C. two solutions
D. infinitely many solutions

I think it is B..?

1. 👍
2. 👎
3. 👁
1. check the discriminant
#1: b^2-4ac < 0, so no solutions
#2: b^2-4ac = 0, so one solution

1. 👍
2. 👎
2. Thank you

1. 👍
2. 👎

## Similar Questions

1. ### College Algebra

Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions. 2x2 = -2 -5 Thank you

Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. NOTE: when I write + it has a minus on the bottom too x^2+7=0 a. x= +7 b. x = +3.5 c. x= 0 d. no solution ***

3. ### algerba

What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = −2x2 − 3x + 8, and what does it mean about the number of real solutions the equation has? What are the solutions to the quadratic equation 4(x +

4. ### Mathxxx!!!

1. How many solutions does the equation have? 4x+3=2(2x+9) a.one solution b.no solution c. infinite number of solutions d. impossible to determine 2. How many solutions does the equation have? 4x+19=-9-6x a.one solution b.no

1. ### Algebra

Compute the value of the discriminant and give the number of real solutions to the quadratic equation. 2x^2+5x-7=0 Discrimnant= number of real solutions=

2. ### math

Decide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x a.one solution b.no solutions c.infinitely many solutions 2. 3(y – 3) = 2y – 9 + y a.one solution b.no solutions

3. ### ALGEBRA

The table below shows two equations: Equation 1 |3x - 1| + 7 = 2 Equation 2 |2x + 1| + 4 = 3 Which statement is true about the solution to the two equations? Equation 1 and equation 2 have no solutions. Equation 1 has no solution

4. ### Math 111

Use the discriminant to determine the number and type of solutions for the given equation. Either A, B, C, OR D 2x^2 = 7x - 8 A One (repeated) rational solution B Two irrational solutions C Two imaginary solutions D Two rational

1. ### math

Use the discriminant to determine whether the quadratic equation has two unequal real​ solutions, a repeated real​ solution, or no real​ solution, without solving the equation. 5x^2-2x+6=0 A. Two Unequal Solutions B. One

2. ### Math help :(

I don't get any of these practice problems. 5. 2(x – 3) = 2x one solution no solutions infinitely many solutions 6. 3(y – 3) = 2y – 9 + y one solution no solutions infinitely many solutions 7. 10x – 2 – 6x = 3x – 2 + x

3. ### math

Determine the number of solutions for the following system of equations 2x+5y=7 10y=-4x+14 1)Exactly one solution 2)No solutions 3)infinite solutions 4)Exactly 2 solutions I solved the equations and got y=7-2X/5 y=-4X+14/10 and I

4. ### Algebra

how many real number solutions does this equation have? -7x^2+6x+3=0 How many real number solutions does the equation have? 0=3x^2+18x+27