A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation?
1 answer:
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Answer:
20 ft²
Step-by-step explanation:
the area (A) of a triangle is calculated using the formula
A = bh ( b is the base and h the height )
here b = 5 and h = 8
A = × 5 × 8 = 20 ft²
Answer:
y = - (x - 5)² + 7
Step-by-step explanation:
The equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
Here (h, k ) = (5, 7 ) , then
y = a(x - 5)² + 7
To find a substitute (10, - 3 ) into the equation
- 3 = a(10 - 5)² + 7 ( subtract 7 from both sides )
- 10 = 5²a = 25a ( divide both sides by 25 )
= a , that is
a = -
y = - (x - 5)² + 7 ← in vertex form